Chapter 10 Test

The kinetic-molecular theory explains the behavior of

• gases only.
• solids and liquids only.
• liquids and gases only.
• solids, liquids, and gases.

An ideal gas is a hypothetical gas

• not made of particles.
• that conforms to all of the assumptions of the kinetic theory.
• whose particles have zero mass.
• made of motionless particles.

A real gas

• does not obey all the assumptions of the kinetic-molecular theory.
• consists of particles that do not occupy space.
• cannot be condensed.
• cannot be produced in scientific laboratories.

Why does the air pressure inside the tires of a car increase when the car is driven?

• Some of the air has leaked out.
• The air particles collide with the tire after the car is in motion.
• The air particles inside the tire increase their speed because their temperature rises.
• The atmosphere compresses the tire.

What is the process by which molecules of a gas randomly encounter and pass through a small opening in a container?

• diffusion
• osmosis
• distillation
• effusion

Particles within a solid

• do not move.
• vibrate about fixed positions.
• move about freely.
• exchange positions easily.

Which of the following properties do solids share with liquids?

• fluidity
• definite shape
• definite volume
• slow rate of diffusion

Which of the following is a crystalline solid?

• a plastic milk container
• a quartz rock
• a glass bottle
• a three-dimensional glass cube

The triple point of a substance is the temperature and pressure conditions at which

• density is greatest.
• states of a substance coexist at equilibrium.
• equilibrium cannot occur.
• kinetic energy is at a minimum.

What is the process of a substance changing from a solid to a vapor without passing through the liquid phase?

• condensation
• evaporation
• sublimation
• vaporization