Phase Changes

Question 1

Which best explains the relationship between evaporation and temperature?

Revolt · Accepted Answer

A liquid evaporates faster at higher temperatures because more particles have a higher speed and can overcome attractions in the liquid.

Question 2

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

Revolt · Accepted Answer

0°C

Question 3

The diagrams below represent the four states of matter. Diagram 1 Diagram 2 Diagram 3 Diagram 4Which diagram represents the phase that occurs after a solid melts?

Revolt · Accepted Answer

diagram 1

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

The diagram below shows the different phase transitions that occur in matter.Which statement best describes the process that arrow 1 represents?

Revolt · Accepted Answer

Molecules are speeding up as boiling occurs.

Question 6

The diagram below shows the different phase transitions that occur in matter. Which arrow would most likely represent the phase change that involves the same amount of energy as arrow 1?

Revolt · Accepted Answer

4

Question 7

Which energy change occurs during boiling?

Revolt · Accepted Answer

Heat energy is absorbed by the substance.

Question 8

When does carbon dioxide absorb the most heat energy?

Revolt · Accepted Answer

during sublimation

Question 9

Consider the statement below.“When nitrogen is liquefied, heat is released.”Is this statement true or false?

Revolt · Accepted Answer

It is true because heat is released when a gas changes to a liquid.

Question 10

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

Phase Changes Answers

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