What will be the final temperature of a 3L nitrogen gas initially exposed to a temperature of 10°C if the volume is increased to 10L assuming that the pressure is fixed at 1 atm?

Answers

Answer 1

Step 1

Charles's law states that the volume (V) of a gas is directly proportional to its absolute temperature. It is assumed that the pressure and the quantity of gas remain constant.

Mathematically:

[tex]\frac{V1}{T1}=\frac{V2}{T2}[/tex]

-------------------

Step 2

Information provided:

T1 = 10 °C + 273 = 283 K

V1 = 3 L

---

T2 = Unknown

V2 = 10 L

-------------------

Step 3

Procedure:

[tex]\begin{gathered} \frac{V1}{T1}=\frac{V2}{T2} \\ T2\text{ =}\frac{V2}{V1}\text{ x T1} \\ T2\text{ = }\frac{10\text{ L}}{3\text{ L}}\text{ }x\text{ }283\text{ K } \\ T2\text{ = 943 K} \end{gathered}[/tex]

Answer: 943 K or 670 °C


Related Questions

A sample of gas with a mass of 1.45 g occupies a volume of 931 mL at a pressure of 733 Torr and a temperature of 16.0 ∘C . What is the molar mass of the gas?

Answers

Answer:

[tex]38.5\text{ g/mol}[/tex]

Explanation:

Here, we want to get the molar mass of the gas

Let us call it M

From the ideal gas equation, we can get the number of moles of the gas

Mathematically:

[tex]\begin{gathered} PV\text{ = nRT} \\ n\text{ = }\frac{PV}{RT} \end{gathered}[/tex]

Also, n is the mass divided by the molar mass of the gas:

[tex]\begin{gathered} \frac{m}{M}\text{ = }\frac{PV}{RT} \\ \\ M\text{ = }\frac{mRT}{PV} \end{gathered}[/tex]

Where:

M is the molar mass that we want to calculate

m is the mass of the gas sample which is 1.45 g

P is the gas pressure which is 733 torr (to convert to atm, we multiply by 0.00131579 : 733 * 0.00131579 = 0.96 atm)

V is the volume which is 931 mL (We convert to L by dividing by 1000:

931/1000 = 0.931 L)

R is the molar gas constant which is 0.0821 L.atm/mol.K

T is the temperature that we convert to K by adding 273 K : 273 + 16 = 289 K)

Substituting the values, we have it that:

[tex]M\text{ = }\frac{1.45\text{ }\times0.0821\text{ }\times289}{0.96\times0.931}\text{ = 38.5 g/mol}[/tex]

What wavelength (in nm) of light is emitted when an electron transitions from the n = 12 to the n = 1 state?

Answers

The wavelength of the light in this case is 92 nm

What is the Bohr model?

In accordance with the Bohr model of the atom, We know that electrons could be promoted from the from a lower to a higher energy level. As such, the movement of the electron would lead to the emission of light of a characteristic wavelength.

Hence;

1/λ = 1.097 * 10^7 (1/[tex]n_{2} ^{2}[/tex] - 1/[tex]n_{1} ^{2}[/tex])

Hence;

n1 = 1

n2 = 12

We then have;

1/λ = 1.097 * 10^7 (1/1^2 - 1/12^2)

1/λ = 1.097 * 10^7 (1 - 0.0069)

λ = 9.2 * 10^-8 m or 92 nm

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Could you please tell me that is true or false Surfactants are compounds that increase surface tension of a solvent.

Answers

Surfactants are characterized to lower the surface tension between two liquids or between a liquid and a gas and so on.

You can see an example for detergents: the detergents are surfactants that lower the surface tension and that's because you can see that the dirt disperses easily and other substances, so the answer is false.

The table below gives the equilibrium concentrations for this reaction at acertain temperature:N₂(g) + O₂(g) →→→→2NO(g)0.69 M[N₂]0.98 MOA. 20OB. 1.7 x 10-3OC. 5.0 × 10-2OD. 9.9[0₂]What is the equilibrium constant for the reaction?0.034 M[NO]

Answers

Answer:

Option B is correct

[tex]1.7\times10^{-3}[/tex]

Explanations:

Given the chemical reaction below;

[tex]N_2(g)+O_2(g)\rightarrow2NO(g)[/tex]

The equilibrium constant for the reaction is given as;

[tex]k=\frac{[NO]^2}{[O_2][N_2]}[/tex]

Given the following parameters

[tex]\begin{gathered} [NO]=0.034M \\ [N_2]=0.69M \\ [O_2]=0.98M \end{gathered}[/tex]

Substitute

[tex]\begin{gathered} k=\frac{(0.034)^2}{(0.69)(0.98)} \\ k=\frac{0.001156}{0.6762} \\ k=0.001709=1.7\times10^{-3} \end{gathered}[/tex]

Therefore the equilibrium constant for the reaction is 1.7 * 10^-3

Chen has a toy car and wants to find out which surface will allow the car to move the fastest. He plans to push the car on carpet, wood, and bricks. predict which surface the toy car will move the fastest on and why

Answers

Answer:

The car will most likely move the fastest on the wood. Carpet will create drag due to the friction between the car's wheels and the carpet. Bricks are not smooth so drag will occur, however it will be minimal. Wood is usually smooth and there is almost no drag or friction...the car will glide easily over the surface.

Explanation:

Hope this helps!!

PLEASE HELP ME!!!
A)Nuclear fusion releases protons and neutrons, so the total number of protons
and neutrons in a star changes throughout its life.
B)Nuclear fusion conserves protons and neutrons, so the total number of protons
and neutrons in a star changes throughout its life.
C)Nuclear fusion releases protons and neutrons, so the total number of protons
and neutrons in a star remains the same throughout its life.
D)Nuclear fusion conserves protons and neutrons, so the total number of protons
and neutrons in a star remains the same throughout its life.

Answers

A)Nuclear fusion releases protons and neutrons, so the total number of protons and neutrons in a star changes throughout its life is the true statement.

What are some uses for nuclear fusion?

A suggested method of producing energy would use heat from nuclear fusion processes to produce electricity. A heavier atomic nucleus is created by the fusion of two lighter ones, which also produces energy. Fusion reactors are devices created to use this energy.

Nuclear fusion is less risky than nuclear fission because the fuel rods produced by nuclear fission include dangerous radioactive waste that may be used in weapons and must be maintained carefully for thousands of years.

Powering the Sun and other stars are nuclear fusion processes. Two light nuclei combine to produce one heavy nucleus during a fusion process. The resultant single nucleus's total mass is less than the mass, which causes the process to release energy.

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In the reaction below, if a total of 10.0 g of zinc and hydrochloric acid react completely, what is the total mass of zinc chloride and hydrogen produced?Zn(s) + 2HCl(aq) to ZnCl2(aq) + H2(g)Exactly 10.0 gLess than 10.0 gNot enough information to tellGreater than 10.0 g

Answers

Answer:

Not enough information to tell.

Explanation:

What is given?

Mass of Zn = 10.0 g,

Mass of HCl = 10.0 g,

Molar mass of Zn = 65.4 g/mol,

Molar mass of HCl = 36.4 g/mol,

Molar mass of ZnCl2 = 136.2 g/mol,

Molar mass of H2 = 2 g/mol.

Step-by-step solution:

First, let's convert 10.0 g of each reactant to moles using their respective molar mass:

[tex]\begin{gathered} 10.0\text{ g Zn}\cdot\frac{1\text{ mol Zn}}{65.4\text{ g Zn}}=0.153\text{ moles Zn,} \\ \\ 10.0\text{ g HCl}\cdot\frac{1\text{ mol HCl}}{36.4\text{ g HCl}}=0.275\text{ moles HCl.} \end{gathered}[/tex]

Now, let's identify what is the limiting reactant. Let's see how many moles of ZnCl2 can be produced by 0.153 moles of Zn if 1 mol of Zn reacted produces 1 mol of ZnCl2, and how many moles of ZnCl2 can be produced by 0.275 moles of HCl if 2 moles of HCl reacted produces 1 mol of ZnCl2:

[tex]\begin{gathered} 0.153\text{ moles Zn}\cdot\frac{1\text{ mol ZnCl}_2}{1\text{ mol Zn}}=0.153\text{ moles ZnCl}_2, \\ \\ 0.275\text{ moles HCl}\cdot\frac{1\text{ mol ZnCl}_2}{2\text{ moles HCl}}=0.138\text{ moles ZnCl}_2. \end{gathered}[/tex]

You can realize that the limiting reactant, in this case, is HCl because is the first reactant consumed first and this reactant 'impose' the limit to produce the products.

So now, let's find how many moles of H2 are being produced by 0.275 moles of HCl if 2 moles of HCl reacted produces 1 mol of H2:

[tex]0.275\text{ moles HCl}\cdot\frac{1\text{ mol H}_2}{2\text{ moles HCl}}=0.138\text{ moles H}_2.[/tex]

The final step is to convert each number of moles of each product to grams using their respective molar mass, as follows:

[tex]\begin{gathered} 0.138\text{ moles ZnCl}_2\cdot\frac{136.2\text{ g ZnCl}_2}{1\text{ mol ZnCl}_2}=18.8\text{ g ZnCl}_2, \\ \\ 0.138\text{ moles H}_2\cdot\frac{2\text{ g H}_2}{1\text{ mol H}_2}=0.276\text{ g H}_2. \end{gathered}[/tex]

We're producing 18.8 g of zinc chloride (ZnCl2), and 0.276 g of hydrogen (H2), so based on this logic the answer would be not enough information to tell.

4) Mixtures of He and oxygen are used in scuba diving to help prevent “TheBends". For a particular dive the total pressure in the tank is 15 atm. If thepartial pressure of oxygen is 6.0 atm, what is the partial pressure of He ?A

Answers

By following Daltons laws of partial pressure .

" the pressure that eachgaswould have exerted ,Add up to the total pressure" .

• Therefore :

,

• Total Pressure = P.Pressure (oxygen) + P.Pressure of (He)

15 atm = 6atm + Pressure of He

P.Pressure ofHe = 15atm-6atm

= 9 atm

This means that the partial pressure of He = 9atm +

B is the answer mixture oxygen scuba

What is the Lewis Structure for NH4+?

Answers

The Lewis Structure for NH₄⁺ (Ammonium ion) is described as having four sigma bonds around a Nitrogen Atom. It is also to be noted tha there is a +1 charge on the Nitrogen atom.

What further describes the NH₄⁺ (Ammonium ion) Lewis Structure?

The nitrogen atom is surrounded by four sigma bonds. As a result, the form of NH4+ is tetrahedral. The total number of sigma bonds and lone pairs surrounding the nitrogen atom is four. As a result, the geometry should be tetrahedral.

Lewis structures also referred as Lewis dot formulas, Lewis dot frameworks, electron dot structures, or Lewis electron dot structures, are schematics that depict the bonding between atoms in a molecule as well as any lone pairs of electrons that may occur.

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Multiply or divide the following measurements. Be sure your answer You and your contains the correct significant digits. 827.76 divided 60.65 s = m/s685.5 mol divided 0.50 L = mol/L20.9476 cm x 26. Cm = cm^2

Answers

827.76 m/60.65 s = 13.65 m/s

685.5 mol/0.50 L = 1371 mol/L

20.9476 cm x 26 cm = 545 cm^2

When adding/subtracting

Use the least number of significant figures past the decimal point when adding or subtracting numbers.

When multiplying/dividing

Use the least number of significant figures present in any number in the problem when multiplying or dividing numbers.

what percent of a sample of As-81 remains un decayed after 43.2 seconds

Answers

The percentage of the sample of As-81 remaining undecayed after 43.2 seconds is 40.6%

How to determine the percentage remaining undecayed

We'll beging by calculating the number of half lives that has elapsed. This can be obtained as follow

The following data were obtained from the question:

Time (t) = 43.2 secondsHalf-life (t½) of As-81 = 33 secondsNumber of half-lives (n) =?

n = t / t½

n = 43.2 / 33

n = 1.3

Finally, we shall determine the percentage remaining undecayed. This is shown below:

Original percentage (N₀) = 100%Number of half-lives (n) = 1.3Percentage remaining (N) = ?

N = N₀ / 2ⁿ

N = 100 / 2^1.3

N = 40.6%

Thus, we can conclude that the percenatge undecayed is 40.6%

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2A + C + D + EDetermine the enthalpy(AH)in kJ of the above reaction using the reactions below:1B → C AH = 415.3 kJA + 1B →D AH = -95.7 kJ6A ->6E AH = 207.9 kJ

Answers

Answer: ∆H total= -476.35kJ.

Explanations:

• We will follow Hess's Law of Constant Heat Summation:

(that states that if a reaction occurs in more than one route, then the the total enthalpy change for the reaction is the sum of all changes.)

For reaction :

[tex]\begin{gathered} B\Rightarrow C\text{ }\Delta H\text{ = 415.3 kJ }\ldots\text{.}\mathrm{}(\text{ reaction 1)} \\ A+B\text{ }\Rightarrow\text{ D }\Delta H\text{ = -95.7kJ}\ldots.(\text{ reaction 2 ) } \\ 6A\text{ }\Rightarrow6E\text{ }\Delta H\text{ = 207.9kJ }\ldots\ldots(\text{reaction 3 ) } \end{gathered}[/tex]

∆H total =( reaction 3 )/6 +reaction 2 - reaction 1

this can be expressed as :

[tex]\begin{gathered} \Delta H_{total\text{ }}=\text{ }\frac{207.9}{6\text{ }}+(-95.7\text{ ) - 415}.3\text{ } \\ \text{ = 34.65 -95.7 -415.3} \\ \text{ =-476.35kJ} \end{gathered}[/tex]This means that ∆H total= -476.35kJ.

Calculate the frequency of light that has a wavelength of 6.2 * 10^-7 m.

Answers

Answer:

4.839 × 10^14 Hz or s^-1

Explanation:

speed of light = wavelength times frequency

frequency = speed of light ÷ wavelength

3.00 x 10^8 = speed of light

3.00 x 10^8 m/s ÷ 6.2 x 10^-7 m = 4.839 × 10^14 Hz or s^-1

socraticorg

12. What is a resonance structure?A. Alternate structures of similar compoundsb. Alternate structures of the same compoundC. Similar compounds with electrons added to themd. Similar compounds with electrons removed from them

Answers

There are some compounds in which the electrons move from one side to anothe, and it is a continous movement. For that reason, the resonance structure is created. It works as a theorical structure which is not exact, but it helps us to approach to the real structure.

For example, for the bencene, there are 3 different resonance structures:

And they are the same compound. It means that the answer is B. Alternate structures of the same compound.

The
following reaction: Na+ (g) --> Na+ (aq) AH = -364 kJmol
1 is endothermic reaction.
True
False

Answers

Na+ (g) --> Na+ (aq) AH = -364 kJmol 1 is endothermic reaction. The given reaction is False, As H is negative hence exothermic reaction not endothermic


What is endothermic  reaction?

Chemical processes referred to as endothermic reactions occur when the reactants take in heat energy from their environment to create products. These reactions produce a cooling effect by bringing the temperature of the space around them down. Ice cubes absorb heat energy from their surroundings and melt to generate liquid water as an example of an endothermic physical process (no chemical bonds are broken or formed).


False, As H is negative hence exothermic reaction not endothermic


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Calculate the boiling point of a 0.33 m solution of a solute in benzene.
(Kb = 2.53°C /m).

Answers

We can see that the solution has a boiling point of 80.93°C.

What is the boiling point?

The atmospheric pressure does equal the pressure of a liquid as we heat the system. The temperature at which this occurs is called the boiling point. Now we know that the boiling point of the pure benzene is 80.1 °C.

Given that;

ΔT = K m i

ΔT = boiling point elevation

K = boiling point constant

m = molality of the solution

i = Van Hoff factor (molecular solute)

ΔT = 2.53°C /m * 0.33 m * 1

ΔT =  0.83°C

The boiling point of the solution is now gotten from ; 0.83°C + 80.1 °C

= 80.93°C

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A NaOH solution contains 26.0 g of NaOH, and it’s concentration is 1.3M. What is its volume?

Answers

Answer

Volume = 0.5 L

Explanation

Mass of NaOH = 26.0 g

Molarity = 1.3 M

Molar mass of NaOH = 39.997 g/mol

Volume = ?

The volume of NaoH can be calculated using

[tex]\begin{gathered} V=\frac{n}{M} \\ \text{Where;} \\ V\text{ is the volume} \\ n\text{ is the number of mole of NaOH} \\ \text{M is the Molarity} \end{gathered}[/tex]

But the number of mole of NaOH, n = mass of NaOH / Molar mass of NaOH

[tex]\Rightarrow n=\frac{26.0\text{ g}}{39.997\text{ g/mol}}=0.65\text{ mole}[/tex]

Therefore, the volume of NaOH is

[tex]V=\frac{0.65}{1.3}=0.50\text{ L}[/tex]

In the reaction 2H2 + O2 →2H2O if 14grams of H2 react, how many grams of water could be produced?

Answers

Answer:

Explanation:2H2 + O2 —-> 2H2O

The mole ratio of H2 to H2O is 2 : 2 = 1:1

4 moles of H2 = 4 moles of H2O

Moles of H20 = 4mol

Molar mass of H2O = 18g/mol

Mass = moles X Molar mass

= 4mol x 18g/mol

= 72g

71.11 Liters of nitrogen gas combined with 60.6 liters of oxygen gas. What volume of nitrogen dioxide gas is made?

Answers

The reaction to produce nitrogen dioxide from nitrogen and oxygen is as follows:

[tex]N_{2(g)}+2O_{2(g)}\rightarrow2NO_{2(g)}[/tex]

Since all the reactants and products are gases, we can take the coefficients as liters of substance.

Dividing the volumes we have of each reactant by their corresponding coefficient we can determine the limit reagent:

[tex]\begin{gathered} \frac{71.11LN_2}{1LN_2}=71.11 \\ \frac{60.6LO_2}{2LO_2}=30.3 \end{gathered}[/tex]

From this we can conclude that the limit reagent is oxygen.

We have to base our calculations on this substance.

According to the given equation, 2 L of O2 produce 2 L of NO2, use this ratio to find the volume of nitrogen dioxide produced:

[tex]60.6LO_2\cdot\frac{2LNO_2}{2LO_2}=60.6LNO_2[/tex]

It means that 60.6 liters of nitrogen dioxide gas are made.

The chemical equation for the combustion of ethanol is as follows:C2HyOH + 302 - 2002 + 3H20

Answers

Answer:

5998kJ

Explanations:

Given the reaction between ethanol and oxygen expressed as:

[tex]C_2H_5OH+3O_2\rightarrow2CO_2+3H_2O[/tex]

For the product

We have 2 moles of CO2 and 3 moles of water. The total bond energy in the product is expressed as:

[tex]\begin{gathered} \triangle H_p=2(2C=O)+3(2O-H) \\ \triangle H_p=4(799)+6(467) \\ \triangle H_p=3196+2802 \\ \triangle H_p=5998kJ \end{gathered}[/tex]

Hence the total energy transferred to build all the bond energy in the product is 5998kJ

2.75 grams of Potassium represent how many grams of Potassium?Group of answer choices39.10 grams107.5 grams14.22 grams215 grams

Answers

Answer: Option B , 107.52 grams

Solutions :

We are given

• mass of potassium = 2.75 g

,

• Recall that 1 mole of potassium = 39.0983 grams

So , 2.75 g will represent

[tex]\begin{gathered} If\text{ 1 mole K : 39.0983 grams } \\ \text{then 2.75 mol : x } \\ \therefore\text{ x grams = (2.75 moleK }\cdot\text{ 39.0983 g) / 1 mole K } \\ \text{ = 107.52 grams } \end{gathered}[/tex]This means that 2.75 moles of Potassium represent 107.52 grams of potassium.

If 30.7 g of C₂H₅OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added to fill the flask, what is the concentration of C₂H₅OH in the resulting solution?

Answers

The concentration of C₂H₅OH in the resulting solution is 1.332 M.

given that :

mass of C₂H₅OH = 30.7 g

molar mass =46.07 g/mol

volume =  500 ml = 0.5 L

number of moles can be calculated by the following formula :

number of moles = mass / molar mass

no. of moles = 30.7 g / 46.07 g/mol

no. of moles = 0.666 mol

now, the concentration of C₂H₅OH :

Molarity = no. of mole / volumes in l

Molarity = 0.666 / 0.5

Molarity = 1.332 M

Thus, If 30.7 g of C₂H₅OH (MM = 46.07 g/mol) are added to a 500.0 mL volumetric flask, and water is added to fill the flask, The concentration of C₂H₅OH in the resulting solution is 1.332 M.

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4. Which atom (magnesium or chlorine) has a higher ionization energy?___________________________(you should also be prepared to answer the question if asked for lower ionization energy)4a. Explain why the atom has a higher ionization energy. Include the definition of ionization energy and the reason why the atom you chose would have a higher value.

Answers

Answer:

The Chlorine atom has higher ionization energy.

Explanation:

Ionization energy is the energy needed to separate an electron from an atom of an element in the gaseous state.

In the Periodic Table of Elements, Ionization energy increases from bottom to top (in a group), and increases from left to right (in a period).

In the folowing drawing we can see the variation of the Ionization energy and the location of the magnesium atom and chlorine atom:

Magnesium atom and Chlorine atom are located in the same period, but Mg is in group 2 (left side) and Cl in in group 17 (right side), so the Chlorine atom has higher ionization energy.

A 0.15M solution of methylamine CH3NH2 contains an unknown concentration of methylamine chloride CH3NH3Cl. If the solution has a pH of 10.20,what is the concentration of methylamine chloride in the solution? Kb for methylamine =4.6*10^-4

Answers

The concentration of methylamine chloride in the solution is 0.44 M.

given that :

concentration of methylamine , [ base ] = 0.15 M

pH = 10.20

pH + pOH = 14

pOH = 14 - pH = 14 - 10.20 = 3.8

Kb = 4.6 × 10⁻⁴

concentration of methylamine chloride , [ acid ] = ?

The equation of POH is given by the following formula :

POH = pKb + log [ acid ] / [ base ]

pkb = -log kb

pkb = - log ( 4.6 × 10⁻⁴ )

pkb = 3.33

now, substituting the values, we get:

POH = pKb + log [ acid ] / [ base ]

3.8 = 3.33 + log [ acid ] / [ 0.15 ]

0.47 = log  [ acid ] / [ 0.15 ]

10^0.47 =  [ acid ] / [ 0.15 ]

2.95 = [ acid ] / [ 0.15 ]

[ acid ] = 0.44 M

Thus, A 0.15M solution of methylamine CH3NH2 contains an unknown concentration of methylamine chloride CH3NH3Cl. If the solution has a pH of 10.20,what is the concentration of methylamine chloride in the solution is 0.44 M.

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What is the empirical formula for sulfur dioxide?A. SDO B. SD C. S2O2 D. SO2

Answers

Explanation:

We have to find the empirical formula for sulfur dioxide. The compound contains two elements: Sulfur and oxygen.

As it name says, it is a dioxide, it means that one molecule of the compound contains two atoms of O.

The empirical formula of sulfur dioxide is: SO₂.

Answer: d. SO₂.

how many molecules are there in 2.13 moles of sodium bromide

Answers

Answer:

121 I think not sure tbh......

Find the percentage by mass of I in CaI2 if it is 13.6% Ca by mass. (Round your answer to one decimal place.) %

Answers

First, we have to remember what a mass percentage means (in this particular case):

It is the amount of each element in a compound, and it is calculated as follows:

[tex]\%\text{ m/m = }\frac{mass\text{ of the element}}{mass\text{ of the compound}}*100\text{ }[/tex]

The addition of the different mass percentages is equal to 100%.

In this case, we have the percentage of one of the elements of the compound, we can make the respective subtraction:

[tex]\%I\text{ = 100 - 13.6 = 86.4 \%}[/tex]

Then, the answer is that the iodine mass percentage is 86.4%

I need help on this!! it’s due today! will mark brainliest if it’s correct

Answers

Nuclear fission causes a neutron to split the isotope U-235 when it collides with its nucleus. When a slow neutron interacts with a heavy nuclide like 235U, nuclear fission can occur (0.025 eV).

What happens when uranium-235 atoms are bombarded by slow moving neutrons?

When a slow neutron interacts with a heavy nuclide like 235U, nuclear fission can occur (0.025 eV). If a fission (or splitting apart) occurs, the nuclear material splits into two (on average) about equal fragments that travel away with kinetic energy, producing heat.

Nuclear fission causes a neutron to split the isotope U-235 when it collides with its nucleus. Two or three additional neutrons as well as fission products are released during this fission process. The chain reaction is continued by some of the emitted neutrons. There is significant energy released in every fission reaction.

When a uranium atom divides, additional neutrons are also released. The process keeps repeating again as these neutrons keep crashing into more uranium atoms. This process is called a nuclear chain reaction. This reaction is controlled in nuclear power plant reactors to produce a desired amount of heat.

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The isomerization of methyisocyanide, CH3NC, to acetonitrile, CH3CN, is a first-order reaction. If 2.56 mg of CH3NC is present initially, and 1.89 mg is present after 474 min at 230 °C, what is the value of the rate constant, k?Assume the volume is constant. min-1

Answers

To solve this question we will use the integrated rate late law for first order reaction:

[tex]\begin{gathered} ln[A]=-kt+ln[A]_0 \\ [A]:concentration\text{ }of\text{ }A\text{ }at\text{ }certain\text{ }time=1.89mg \\ k:rate\text{ }constant=x \\ t:time=474\text{ }mins \\ [A]_0:initial\text{ }concentration=2.56mg \end{gathered}[/tex]

By substituting the values we have to determine the unknown we get:

[tex]\begin{gathered} ln1.89=-k\times474min+ln2.56 \\ \frac{0.637-0.940}{-474min}=k \\ k=6.392\times10^{-4}\text{ }min^{-1} \end{gathered}[/tex]

Answer: Rate constant k is 6.392x10^-4 per min.

A dog
walks along the ground. If
the dog applies an action
force on the ground, what is
the reaction force?

Answers

Action and response are two forces that have the same magnitude but opposing directions.

Explanation.

The force used by a dog as it moves across the ground is known as the action force. The force that the earth exerts on the dog is the reaction force, on the other hand. Newton's third law of motion serves as its foundation.

What does walking on the ground include action and reaction force?

When we walk on the ground, we push the earth backward with our feet, but the ground pushes our feet forward with an equal force, which propels us forward. Because of this, the action is the force that pushes the ground backward, and the reaction is the force by the ground on our feet.

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A parallelogram has an area of 364.5 cm2. If the base is 27 cm, What is the height? Jim baked 48 cookies with 4 scoops of flour. How many scoops of flour does Jim need in orderto bake 96 cookies? Assume the relationship is directly proportional. what would happen if there was no greenhouse effect within Earth's atmosphere? Alyssa will correctly label the numbers 48.4, 48482, 48.09, and 48on the number line below. Fill in the missing number to complete the linear equation that gives the rule for this tablex: 4, 5, 6, 7y: 32, 40, 48, 56y = ?x NOBODY'S ANSWERING MY QUESTION, HELLO? I WILL GIVE BRAINLIEST :( how many shirts can Jeanette sew at most of and still have 1. spool of thread left helpppppppppppppppppppppppppppppp an off-shore windfarm is likely coming to north carolina, and beachfront property owners are concerned about potential property value impacts. to monetize these impacts, one could use the nonmarket valuation technique. select one: a. averting behavior. b. travel cost. c. hedonic. d. contingent valuation. why are mhc molecules able to bind a variety of peptides? 1. the peptide-binding groove of a specific mhc molecule can bind several peptides simultaneously 2. the mhc genes undergo somatic recombination to produce thousands of mhc molecule variants 3. mhc bind very loosely and transiently to peptide antigens, so a wide variety of peptide antigens can bind any specific mhc molecule 4. a small number of amino acids in the peptide antigen bind specifically to complementary pockets in the mhc molecule binding groove The following information relates to Wildhorse Co. for the year 2022.Retained earnings, January 1, 2022Dividends during 2022Service revenueSalaries and wages expenseYour answer is incorrect.$51,8405,400Net income/(loss) $67,50030,240After analyzing the data, compute net income.Advertising expenseRent expenseUtilities expenseOther comprehensive income (net of tax)$1,94011,2303,350430 how do i expand -4(-x-8) Find a unit vector u in the direction of v. Verify that ||0|| = 1.v = (4, -3)U = Drag each number to the correct location on the table Click here to view a list of the common polyatomic ions. what is the formula for ammonium sulfate? nh4so4 na2so3 (nh4)2so4 na2so4 Which list shows the absolute values in order from greatest to least select each correct answer. A: | 11 7/10 |, | 11 3/5 |, | 10 3/10 | B: | -3 1/3 |, | -3 2/3 |, | 2 2/3 | C: | -1 5/6 |, | 1 7/12 |, | 1 5/12 | D: | -6 5/7 |, | -6 3/7 |, | 5 2/7 | Please help I will give 100! 1. Juan bought fruit from the grocery store. The variables below define his purchase. Juan's bananas cost half as much as apples. Which equations can be used to model his purchase? Select each correct equation.* a = the number of apples he bought b = the number of bananas he bought x= the cost of an apple in dollars y= the cost of a banana in dollars A- a= 1/2 bb- y=1/2 xc- a=2bd- x=2ye- y=2af- b=1/2 x Does cultural refinement alone make a person civilized? Why or why not? Amplitude, period, and phase shift of sine and cosine functions 102,410,000,000,000,000,000,000,000 in scientific notation round to two digits after the decimal