Chemistry High School

25 cm of liquid 'A' and 20 cm of liquid
'B' are mixed at 25°C and the volume of
solution was measured to be 44.8 cm3
then correct reaction is
(A) A Hmix = 0, solution shows
ideal

25 Cm Of Liquid 'A' And 20 Cm Of Liquid'B' Are Mixed At 25C And The Volume Ofsolution Was Measured To

Answers

Answer 1

Answer:

The correct option is;

(B) [tex]\Delta H_{mix} < 0[/tex], solution shows negative deviation

Explanation:

The given parameters are;

The available volume of liquid A = 25 cm³

The available volume of liquid B = 20 cm³

The volume of the solution (mixture) = 44.8 cm³

Therefore, we have;

[tex]\Delta _{mix} V < 0[/tex]

Which is one of the prerequisite for the formation of negative deviation

When a non-ideal solution shows negative deviation according to Raoult's Law, we have;

[tex]\Delta _{mix} H < 0[/tex], we have more heat released due to new molecular interactions.

Related Questions

Which of the following is the correct model of C7H16?
A.
B.
C.
D.

Answers

Answer:

D

Explanation:

Option D gives the correct model of C7H16. From the option, one will discover that the model has 7 carbons in the backbone. If you count the attached hydrogen, you will discover that the hydrogen is 16 in total.

This model or skeletal structure of this element represents heptane. Heptane or n-heptane is known to be a straight-chain compound and an alkane. It's chemical formula can also be written as: H₃C(CH₂)₅CH₃ or C₇H₁₆.

This compound is known to be one of the main components of gasoline. It is known to be a volatile organic compound and a clear and colorless liquids with a petroleum-like odor.

Answer: D

Explanation: Just took the test

Which types of matter are made of atoms

a. Mixtures
b. Elements
C. Compounds
D. All of the above

Answers

Answer:

D all above yes I think it's all above

Answer:  D

Explanation: All of the above.

Plz mark brainliest:)

choose the letter that best describes the behavior of a substance during a phase change:

/A/ neither absorbs or releases energy

/B/ always absorbs energy

/C/ always releases energy

/D/ either absorbs or releases energy

Answers

Answer:

/D/ either absorbs or releases energy

Explanation:

During a phase change energy is either absorbed or released.

A phase change is a reversible process which occurs when a substance changes is its state from one form to another.

Phase changes are used to delineate physical changes.

A phase diagram provides a graphic representation of the change. The diagram can be 2 dimensional or 3 dimensional.
Other Questions
can you tell me how to prevent pickles from getting spoiled? Llena el espacio con la traduccin de la forma correcta del adjetivo posesivo enfatizado.El equipo {{suyo}} tiene atletas muy buenos. where was lencho ' s house situated The INDEPENDENT VARIABLE: A. Is the participantB. Is what the scientists manipulate in the experiment C. The component that is measured. D. The results of the experiment PLEASE ANSWER ASAP. Thank you. QUESTION: Explain the evidence that suggests that the universe is expanding. CAM charges for retail leases in a shopping mall must be calculated. The retail mall consists of a total area of 2.8 million square feet, of which 800,000 square feet has been leased to anchor tenants that have agreed to pay $2 per rentable square foot in CAM charges. In-line tenants occupy 1.3 million square feet, and the remainder is a common area, which the landlord believeswill require $8 per square foot to maintain and operate each year. If the owner is to cover total CAM charges, how much will in-line tenants have to pay per square foot? Find the Unit Rate.216 diving students to 12 instructors Which is the best description for the graph? which among the choices is not a career opportunities of entrepreneurship Photosynthesis is the process through which plants produce sugar and oxygen. Photosynthesis can also take place in single-celled organisms like phytoplankton and other microorganisms. The process of photosynthesis occurs differently from one organism to the next, but several features remain the same. In short, photosynthesis takes in water and carbon dioxide, uses sunlight as a catalyst, and produces oxygen and sugar. The plants release the oxygen through respiration. They digest or store the sugar. Although the process seems simple, it is the most important event on the planet as far as animal life is concerned. Oxygen is a byproduct of photosynthesis. Animals would not be able to breathe if it was not for this process. Herbivores live off these fruits and vegetables and form the basis of any food chain. Carnivores and omnivores would not be able to find food if it were not for these sugars. Were it not for the simple process of photosynthesis, the Earth would be an uninhabited planet.Animals would not be able to breathe if it was not for this process. How does this sentence help to develop the idea that photosynthesis is essential to animal life? A. It shows that animals depend on this process for oxygen. B. It suggests that photosynthesis occurs in all animals. C. It suggests that photosynthesis takes place in the lungs. D. It shows that animals depend on this process for food. ___ turn rocks into soil. [tex]\frac{x^{2} }{3x^{2}+8x-3 } divided \frac{x-3}{x+2}[/tex] Read the excerpt from an adaptation of "To Build a Fire."As he turned to go on, he spat speculatively. There was a sharp, explosive crackle that started him. He spat again, and again, in the air, before it could fall to thesnow, the spittle crackled. He knew that at fifty below spittle crackled on the snow, but this spittle had crackled in the air. Undoubtedly it was colder than fiftybelow-how much colder he did not know. But the temperature did not matter. He was bound for the old claim on the left fork of Henderson Creek, where theboys were alreadyWhat technique does the author use to characterize the man?A. The author uses direct characterization to describe the man's personalityB. The author uses direct characterization to explain the man's fears,C. The author uses indirect characterization to reveal the man's attitude,D. The author uses indirect characterization to reveal the man's hopes, Which social/economic system is pictured above? I need help with this pleaselx+ 11 l< 17 Aquanauts explore the area called? Read this excerpt from "The Day the Gulls Went Crazy" bySusan E. Quinlan.What is the author's purpose in this paragraph?O to describe what Larry does with the gulls' eggsto highlight how defensive gulls are of their neststo explain how Larry used his cleverness to capturegullsCapturing and rebanding an adult gull is much more difficultthan capturing a small flightless chick. Resourceful as always,Larry developed a special capture technique. He rigged up atool using a rope noose, monofilament fishing line, and a fishingpole. Knowing the fight a two-and-a-half-pound adult gull mightput up, he scared the bird off its nest and replaced its fragileeggs with dummy eggs. Next, he laid the noose around the nestand moved away. A trail of fishing line led from the noose to thefishing pole and reel in his hands. Crouching low, Larry waitedfor the retum of the bird in need of rebanding. When themoment was right, he reeled in the line, tightening the noosearound the gulls legs.O to emphasize the materials that Larry used Which of the following best explains some of the powers granted the Congress by the Articles of Confederation?OCongress could build schools, collect taxes, create a banking system, and create prisons.O Congress could declare war, make treaties, create a mail delivery system, and print money.O Congress could build libraries, oversee immigration, enforce religious practices, and require citizens to vote.OCongress could raise taxes, hire a police force, kill prisoners, and hire spies to learn about America's enemies. Jay bought a painting on sale for 45% off the original price, for $27. What was the price of the painting before the sale? if 3n-4=8 then what is the value of 5n-3