Thermodynamics and Heat Transfer Concepts

Front

When water freezes, it:

Back

gives off energy.

Front

Evaporation takes place when matter changes from:

Back

liquid to a gas.

Front

There are how many Joules in one calorie?

Back

4.184

Front

Why do water pipes sometimes burst during a very cold winter?

Back

Because water expands when freezing.

Front

Which gas expands most when the temperature is increased?

Back

Helium.

Front

Compared to a giant iceberg, a hot cup of coffee has:

Back

temperature, but less thermal energy.

Front

Evaporation is a cooling process and condensation is:

Back

a warming process.

Front

Why are steam burns more damaging than burns by boiling water?

Back

Because steam has more energy per kilogram than boiling water.

Front

What do some molecules absorb large amounts of energy in?

Back

The form of internal vibrations and rotations.

Front

Materials composed of such molecules would have:

Back

high specific heats.