Question 1

Which region on the cooling curve corresponds to the phase where water exists as a gas only?

Accepted Answer

Region A

Question 2

In the cooling curve shown, which region represents the phase change from gas to liquid (condensation)?

Accepted Answer

Region B

Question 3

Which region on the cooling curve corresponds to water in the liquid state only?

Accepted Answer

Region C

Question 4

At which region does the freezing of water occur on the cooling curve?

Accepted Answer

Region D

Question 5

Which region on the cooling curve represents water in the solid state only?

Accepted Answer

Region E

Question 6

If the temperature is decreasing but no phase change occurs, which region of the cooling curve is being described?

Accepted Answer

Region C

Question 7

During which region is the latent heat of vaporization being removed from the system?

Accepted Answer

Region B

Question 8

Which region on the cooling curve corresponds to the removal of the latent heat of fusion?

Accepted Answer

Region D

Question 9

If a sample is at 0°C and heat is being removed, which region of the cooling curve is it most likely in?

Accepted Answer

Region D

Question 10

Which region would you expect to see the greatest decrease in temperature per unit of heat removed?

Accepted Answer

Region C

CHE 101 – Practice Test 1 Study Guidance

Study Guide - Practice Questions