Chapter 3 States of Matter

Evaporation is the process that changes a substance from a liquid to a gas at temperatures below the substance's _____________ point.

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Solid, liquid, and gas are three states of matter. What are the other two states of matter, and under what conditions do they exist?

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If a gas in a sealed container has a pressure of 50kPa at 300 K, what will the pressure be if the temperature rises to 360 K?

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How can you determine if a phase change is endothermic?

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Matter that has a definite volume but no definite shape is a

• liquid

• solid

• gas

• plasma

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A gas has

• definite volume but no definite shape.

• definite shape but no definite volume.

• no definite shape or definite volume.

• definite volume and a definite shape

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The phase change in which a substance changes from a liquid to a gas is

• deposition

• sublimation

• condensation

• vaporization

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The phase change in which a substance changes from a solid to a liquid is

• deposition

• melting

• condensation

• vaporization

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The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is

• deposition

• sublimation

• condensation

• vaporization

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Materials can be classified as solids, liquids, or gases based on whether their shapes and _______________ are definite or variable.

• volumes

• masses

• particles

• temperatures