10.5 Phase Change Diagrams Questions

What does a phase change diagram display?

• Temperatures and phase changes of a material

• The speed of a moving object

• The density of different materials

• The color changes of a substance

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Which of the following best describes a phase change diagram?

• A graph displaying temperatures and phase changes of a material

• A chart showing the atomic number of elements

• A table listing chemical reactions

• A diagram of electrical circuits

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At what type of temperature do phase changes occur?

• At a constant temperature

• At increasing temperature

• At decreasing temperature

• At random temperatures

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Which state of matter exists at the lowest temperatures?

• Solids

• Liquids

• Gases

• Plasmas

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NGSS.MS-PS3-4

During which interval does a gas form?

• B to C

• C to D

• D to E

• E to F

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During which interval does a liquid form?

• B to C

• C to D

• D to E

• E to F

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During which interval does a solid form?

• A to B

• C to B

• C to D

• E to D

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How much heat transfer is required to melt the substance?

• 100 kJ

• 50 kJ

• 200 kJ

• 250 kJ

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NGSS.MS-PS3-4

According to the heating curve shown, how much energy (in kJ) is required for the phase change from gas to liquid (condensation) for the substance?

• 100 kJ

• 150 kJ

• 200 kJ

• 250 kJ

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NGSS.MS-PS3-4

According to the heating curve, where do phase changes occur?

• Where the temperature is changing.

• Where the temperature is staying the same (flat lines).

• It depends on the heating curve.

• Where the lines are sloped and going up.

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