Chemistry College

At 25 ∘C
, the equilibrium partial pressures for the reaction

A(g)+2B(g)↽−−⇀C(g)+D(g)

were found to be A=5.63
atm, B=5.00
atm, C=5.47
atm, and D=5.63
atm.

What is the standard change in Gibbs free energy of this reaction at 25 ∘C
?

At 25 C , The Equilibrium Partial Pressures For The ReactionA(g)+2B(g)C(g)+D(g)were Found To Be A=5.63

Answers

Answer 1

The standard change in Gibbs free energy of the reaction at 25 ∘C is -1.69 kJ/mol.

What is standard change?

To find the standard change in Gibbs free energy of the reaction, we need to use the following equation:

ΔG° = -RT ln(K)

where ΔG° is the standard change in Gibbs free energy, R is the gas constant (8.314 J/mol·K), T is the temperature in Kelvin (25 °C = 298 K), and K is the equilibrium constant.

To find K, we need to use the equilibrium partial pressures:

K = (PC × PD) / (PA × PB²)

where PA, PB, PC, and PD are the equilibrium partial pressures of A, B, C, and D, respectively.

Substituting the values, we get:

K = (5.47 atm × 5.63 atm) / (5.63 atm × (5.00 atm)²)

K = 0.6176

Now we can calculate the standard change in Gibbs free energy:

ΔG° = -RT ln(K)

ΔG° = -(8.314 J/mol·K) × (298 K) × ln(0.6176)

ΔG° = -1,690 J/mol or -1.69 kJ/mol

Therefore, the standard change in Gibbs free energy of the reaction at 25 ∘C is -1.69 kJ/mol.

What is free energy?

Free energy, also known as Gibbs free energy, is a thermodynamic quantity that represents the amount of energy in a system that is available to do work at a constant temperature and pressure. It is denoted by the symbol G and is expressed in units of joules (J) or calories (cal).

In simple terms, free energy is the energy that can be used to do work. It is defined by the equation:

ΔG = ΔH - TΔS

where ΔH is the change in enthalpy (heat content) of the system, ΔS is the change in entropy (disorder) of the system, and T is the absolute temperature in Kelvin.

If ΔG is negative, the reaction is spontaneous and can proceed without the input of external energy. If ΔG is positive, the reaction is non-spontaneous and requires energy input to proceed. If ΔG is zero, the system is at equilibrium.

To know more about free energy, visit:

https://brainly.com/question/14150518

#SPJ1

Related Questions

The two possible units of molarity are

Answers

Answer: The units for molarity are moles/liter.

Similarly, the equation to find molarity is moles divided by liters.

Explanation:  

mol / L is a unit of molar concentration. These are the number of moles of dissolved material per liter of solution. 1 mol / L is also called 1M or 1molar. Mol / m3 is also a unit of molar concentration.

Molarity is expressed in units of moles per liter (mol / L). This is a very common unit, so it has its own symbol, which is the uppercase M. A solution with a concentration of 5 mmol / l is called a 5 M solution or has a concentration value of 5 mol.

The molar concentration of the solution is equal to the number of moles of the solute divided by the mass of the solvent (kilogram), and the molar concentration of the solution is equal to the number of moles of the solute divided by the volume of the solution (liter). increase.

What happens when a solid is dissolved into a liquid?
.

Answers

The solid has broken down into pieces so small that its particles spread all throughout the new mixture

In the Periodic Table below, shade all the elements for which the neutral atom has an outer electron configuration of ms2nd2, where n and m are integers, and =m+n1.

Answers

The elements that have an outer electron configuration of ms2nd2 are located in the d-block of the periodic table and include some of the transition metals and lanthanides.

What is the periodic table?

To determine which elements in the periodic table have this outer electron configuration, you can look at the position of the d-block elements in the table. The d-block elements are located in the middle of the table and include the transition metals. These elements have partially filled d orbitals, which can accommodate up to 10 electrons.

Elements in the d-block with an atomic number of 21 through 30 (scandium through zinc) have an outer electron configuration of d10s2 and do not fit the ms2nd2 configuration. However, elements in the d-block with an atomic number of 39 through 48 (yttrium through cadmium) have an outer electron configuration of d10s2p1 and can have the ms2nd2 configuration by removing the single electron in the p orbital. Elements in the d-block with an atomic number of 57 through 80 (lanthanum through mercury) also have the possibility of having an outer electron configuration of ms2nd2.

Learn more about periodic table:https://brainly.com/question/11155928

#SPJ1

Question 5(Multiple Choice Worth 3 points)
(07.02 LC)

The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of thermal energy. Which one do you expect to increase in temperature the least?

a) Cadmium, 0.230 J/(g °C)
b) Sodium, 1.21 J/(g °C)
c) Water, 4.184 J/(g °C)
d) Hydrogen, 14.267 J/(g °C)

Answers

Component form of the vector v is as follows: 4 3 1.5 1 Using the standard basis vectors I and j), express the vector w as follows: 3 two 1 4 pp . 1 3 w 3.5 C. V plus w= d. Determine the vector v's magnitude

What does "vector" mean?

Latin word for "carrier" is "vector." Point A is transported to point B by vectors. The orientation of the vectors AB is the direction in which point A is moved in relation to point B, and the amplitude of the vector is the width of the line connecting the two locations A and B. The terms Euclidean vectors and spatial vectors are also used to refer to vectors.

A vector space is what?

A vector space, also known as a linear space, is a collection of things called vectors that can be added to and multiplied ("scaled") by figures called scalars in the fields of mathematics, physics, and engineering.

To know more about vector visit:

https://brainly.com/question/27854247

#SPJ1

Other Questions
The common stock of NCP paid 1.32 in dividends last year. Dividends are expected to grow at an 8% annual rate for an indefinite number of years.a. If NCP's current market price is $23.50 per share, what is the stock's expected rate of return?b. If your required rate of return is 10.5 %, what is the value of the stock for that investor?c. Should you make the investment? The youngest sea floor is typically found ______. a. along passive margins b. along active margins c. along mid-ocean ridges d. randomly within abyssal plains. In many nonindustrial societies, adolescence is considered to be either nonexistent or NON existant or growth leading too Sexual maturityq (true or false) Jaxon made 5% of his free throws over the season. If he shot 220 free throws, how many did he make? The length of a side of an equilateral triangle is 14 centimeters.What is the length of the altitude of the triangle? 2 7cm 3 7 cm 7 2 cm 7 3 cm evolutionary changes that create new species, impacting the diversity of organisms over long periods of time through the evolution and extinction of many species, best describes which process? A classmate of yours stated that a solid line is not a good representation of an arithmetic sequences. What logical assumption is your classmate using?The classmate is not correct. A line is a good representation of an arithmetic sequence.A line is a series of dots that represent each value of the sequence.A line has the same slope as the common difference in the sequence.An arithmetic sequence is a set of discrete values, whereas a line is a continuous set of values. PLEASE HELP DUE TODAY!!!!!!!Consider the functions g(x) = 2x + 1 and h(x) = 2x + 2 for the domain 0 < x < 5 a. Without evaluating or graphing the functions, how do the ranges compare?b. graph the 2 functions and describe each range over the given interval State the minimum monthly income, an hourly wage per hour, needed to cover monthly expenses for the family used in part a and explain how to calculate the hourly wage based on the monthly income and state the hourly wage. assume that each full-time worker works four 40 hour work weeks per month and each part time worker works two 40 hour weeks per month. In morning Emily studied 40 minutes for a math exam. Later that evening Emily studied for x more minutes. Write an equation that represents the total number of minutes y emily studied for the math exam he experimental results, which of the following is the best evolutionary explanation for the occurrence of ard in c. elegans ? responses the ability to enter ard provides a strong selective advantage because reproduction can occur despite periods of food scarcity. the ability to enter , a r d, provides a strong selective advantage because reproduction can occur despite periods of food scarcity. acquiring the genes for ard gives individuals a selective advantage because they produce more offspring than do individuals who cannot enter ard . acquiring the genes for , a r d, gives individuals a selective advantage because they produce more offspring than do individuals who cannot enter , a r d, . individuals who can enter ard are selected for in the population because they live longer than do individuals who cannot enter ard . for a normal distribution, a positive value of z indicates that group of answer choices all the observations must have had positive values. the area corresponding to the z is either positive or negative. the sample mean is smaller than the population mean. the sample mean is larger than the population mean. Read the passage.excerpt from "Run, Kate Shelley, Run" by Julia PferdehirtThe same telegraph that had warned Ogden Station to hold the midnight express sent news of Kate's bravery from city to city. Within days, newspapers all over the nation were calling her the "Iowa heroine."While Kate lay in bed recovering from that terrible night, every train passing by the farmhouse blew its whistle in her honor. Then the people of Iowa awarded her a gold medal, and the railroad gave her one hundred dollars and a lifetime railroad pass.The nation honored Kate, too. However, the honor most dear to her came from the railroad men themselves. As long as she lived in Moingona, Iowa, they recognized brave Kate in their own special way. Whenever she wanted to ride the Chicago and Northwestern, they stopped the train just for her. A station stop was not good enough. They stopped the train right in front of the little farmhouse on Honey Creek.QuestionWhat are three key details in this passage?Select all correct answers.ResponsesA. Kate's farmhouse was small and located near Honey Creek.B. Kate received a gold medal, $100, and a lifetime railroad pass.C. The railroad men honored Kate by stopping the train at her home whenever she wanted to ride.E. The railroad men honored Kate by stopping the train at her home whenever she wanted to ride.F. Newspapers across the nation wrote about Kate's heroic deeds and called her the "Iowa heroine."(select all)PLEASE HELP IM BEGGING YOU clock skew is a problem for: group of answer choices address buses. control buses. synchronous buses. asynchronous buses. you are purchasing a new machine that costs $12 million, and that has a 7 year expected life span. After 7 years, the estimated salvage value is $2 million. What is the yearly straight-line depreciation? (answer in MILLION dollars, but without the dollar sign, e.g. "0.42" is $0.42 million) Type your answer... ___________ occurs when a supervisor earns less than his or her subordinatesa) Role conflictb) Role ambiguityc) status incongruenced) informal status be 9 yes Financial results may a misleading indicator of strategic health of a company do you agree with this statement? Explain start with with this statement or agree I do not agree Strictly one page: Strateg-effectiveness effia oncy - financial is operations : *Machoki - Readings FOC FIDEL MWAKI 4 COMPANY ADVOCATES$ Which research questions would be most effective way to get information about this controversial All the following are examples of variable costs, except. a. labor costs. b. cost of raw materials. c. accounting fees. d. electricity cost. which term best reflects the federal government's opinion on the value of a particular over-the-counter (otc) medication?