Kinetic Molecular Theory

Which of the following is not true about the volume of a gas?

• Most of the volume is empty space.

• The volume is occupied by particles in continuous, rapid, random motion.

• The volume is about 10 times greater than that occupied by an equal number of particles in the liquid or solid state.

• Generally, the volume can be easily changed

Which of the following is an assumption of the kinetic-molecular theory of gases?

• Collisions between gas particles are inelastic.

• Gases consist of closely spaced particles.

• Gas particles move around in an orderly manner.

• The temperature of a gas depends on the average kinetic energy of the gas particles.

Which of the following is not a physical property of gases?

• absence of definite volume

• large density

• high compressibility

• fluidity

Gas pressure is caused by

• gas molecules colliding with surfaces
• gas molecules condensing to a liquid
• gas molecules hitting other gas molecule
• barometers

Tags

NGSS.MS-PS2-1

Of these three states of matter, which one has the most kinetic energy? 

• Solid 
• Liquid 
• Gas

Tags

NGSS.HS-PS3-2

Gas particles have the ________ kinetic energy because they move the fastest.

• least
• most

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Gases are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume

A gas

• has a definite shape but no definite volume
• has a definite volume but no definite shape
• has fast-moving particles

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which state does matter completely fill its closed container?

• Gas
• Liquid
• Solid
• Ice