Phase Changes

Question 1

A solid substance turns directly into a gas. Which term describes this change?

Revolt · Accepted Answer

sublimation

Question 2

Consider the temperature versus time graph below.At what temperature is the boiling point of this substance?

Revolt · Accepted Answer

at 120°C

Question 3

In which phase transition do molecules move directly from a state involving vibration of particles in a fixed position to a state involving random movement of high-speed particles?

Revolt · Accepted Answer

sublimation

Question 4

The arrows in the chart below represent phase transitions.Which arrows represent the phase transitions in which heat energy is gained?

Revolt · Accepted Answer

1, 2, and 3

Question 5

Which best describes the energy change that takes place during deposition?

Revolt · Accepted Answer

Heat energy is released by the substance.

Question 6

Which energy change occurs during boiling?

Revolt · Accepted Answer

Heat energy is absorbed by the substance.

Question 7

Consider the heating curve for water.At what temperature does the solid start melting?

Revolt · Accepted Answer

0°C

Question 8

The diagram below shows the different phase transitions that occur in matter. Which arrow would most likely represent the phase change that occurs when silver is poured into a mold and cools to become a solid bar?

Revolt · Accepted Answer

5

Question 9

Consider the temperature versus time graph below.In which region is the substance in both the solid phase and the liquid phase?

Revolt · Accepted Answer

2

Question 10

Jean has a sample of a liquid. If she changes the liquid’s phase by

Revolt · Accepted Answer

evaporating

Phase Changes Answers

More from this Course

TRY EDGENUITY HACKS