NAC Chapter 3 Chemistry Flashcard

Front

What is the property that measures the amount of heat energy required to change a substance from a solid to a liquid?

Back

Heat of fusion.

Front

Between which points does the temperature of a substance remain constant during a phase change?

Back

B-C, D-E.

Front

How do you convert 11 degrees Celsius to Kelvin?

Back

Add 273.15 to the Celsius temperature: 11 + 273.15 = 284.15 K.

Front

What is the symbol for specific heat?

Back

Cp.

Front

What is the process of freezing (or solidification)?

Back

The transition from liquid to solid.

Front

What is the definition of specific heat?

Back

The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant while the substance changes state.

Front

What is the heat of vaporization?

Back

The amount of heat energy required to change a substance from a liquid to a gas.

Front

What is the relationship between temperature and kinetic energy in a substance?

Back

As temperature increases, the kinetic energy of the particles in the substance also increases.

Front

What is the significance of the phase diagram in chemistry?

Back

It shows the states of a substance at different temperatures and pressures.