Solids and Plasmas

Question 1

Which statements describe phase changes? Check all that apply.

Revolt · Accepted Answer

Particles in a liquid need to move more slowly in order to freeze.; Attractive forces between the particles in a liquid are broken when a liquid boils.

Question 2

Which statement describes the appearance of a temperature-vs.-time graph?

Revolt · Accepted Answer

Horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases.

Question 3

Which number on the graph represents the phase change boiling?

Revolt · Accepted Answer

4

Question 4

Energy is released during which phase changes? Check all that apply.

Revolt · Accepted Answer

condensing; depositing; freezing

Question 5

Which statement describes how phase changes can be diagrammed as a substance is heated?

Revolt · Accepted Answer

The temperature is on the y-axis and the time is on the x-axis.

Question 6

Use the information in the table to describe the temperature-vs.-time diagrams.Which number on the graph represents a solid? Which number on the graph represents the phase change melting? Which number on the graph represents the phase change boiling?

Revolt · Accepted Answer

1; Selection 1: 1; Selection 2: 2; Selection 3: 4

Question 7

Considering the chart shown, at what temperature does the substance boil?

Revolt · Accepted Answer

2,200ºC

Question 8

Which number on the graph represents the phase change melting?

Revolt · Accepted Answer

2

Solids and Plasmas Answers

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