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5 Written Questions

1. The amount of heat energy needed to vaporize one mole of liquid at its boiling point.
2. Liquids that evaporate slowly, have relatively strong attractive forces between particles.
3. The physical change of a solid to a liquid by the addition of heat.
4. The temperature in which a solid becomes a liquid.
5. The pressure exerted by a vapor in equilibrium with its corresponding liquid at a given temperature.

5 Matching Questions

1. CRITICAL TEMPERATURE
2. BOILING
3. BOILING POINT
4. OPEN SYSTEM
5. EQUILIBRIUM

1. a The conversion of a liquid to a vapor within the liquid as its surface.
2. b Dynamic condition at which two opposing charges occur at equal rates in a closed system.
3. c Both matter and energy can escape or enter.
4. d The temperature above which the substance cannot exist in the liquid state.
5. e The temperature at which the equilibrium vapor pressure of the liquid equals the atmospheric pressure.

5 Multiple Choice Questions

1. A substance that can flow and therefore can take the shape of its container.
   1. FLUID
   2. PHASE
   3. MELTING
   4. STRESS
2. Liquids that evaporate readily, have relatively weak attractive forces between particles.
   1. NONVOLATILE LIQUIDS
   2. CRYSTAL LATTICE
   3. SUPERCOOLED LIQUIDS
   4. VOLATILE LIQUIDS
3. A soild in which the particles are arranged randomly.
   1. STRESS
   2. CRYSTALLINE SOLID
   3. AMORPHOUS SOLID
   4. OPEN SYSTEM
4. The change of state from a solid directly to a gas.
   1. SUBLIMATION
   2. VAPORIZATION
   3. DEPOSITION
   4. EVAPORATION
5. Matter cannot enter or leave, but energy can.
   1. CRYSTAL
   2. STRESS
   3. OPEN SYSTEM
   4. CLOSED SYSTEM

5 True/False Question

1. LE CHÁTELIER'S PRINCIPLE → When a system at equilibrium is disturbed by application of a stress, it attains a new equilibrium position that minimizes the stress.
   

   True        False

2. CRITICAL POINT → Indicates the critical temperature and critical pressure of a substance.
   

   True        False

3. CRYSTALLINE SOLID → The total three-dimensional arrangement of particles of crystals.
   

   True        False

4. PHASE DIAGRAM → A graph of pressure versus temperature that shows the conditions under which the phases of a substance exist.
   

   True        False

5. STRESS → Any part of a system that has uniform composition and properties.
   

   True        False