Intro to Chemistry_Lessons 10-15

Front

What is the measurement of the average speed of the molecules?

Back

Temperature

Front

How does the speed of molecules change with an increase in temperature?

Back

The molecules move faster.

Front

True or False: When a substance is expanding, the molecules get larger.

Back

False

Front

What is the process called when a solid state changes into a liquid?

Back

Melting

Front

What happens to the molecules when the temperature increases?

Back

They move faster and collide more with one another.

Front

What is the relationship between temperature and the volume of a substance?

Back

An increase in temperature generally results in an increase in volume.

Front

What is the term for the energy of motion of molecules?

Back

Kinetic energy

Front

What is the effect of temperature on the kinetic energy of molecules?

Back

Higher temperature increases the kinetic energy of molecules.

Front

What is the phase change from liquid to gas called?

Back

Vaporization

Front

What is the phase change from gas to liquid called?

Back

Condensation