Chapter 20

Front

Relative humidity

Back

The amount of water vapor in the air divided by the total amount the air could hold at a particular temperature

Front

Dew point

Back

The temperature at which air becomes saturated with water vapor, causing condensation. The greater the amount of water vapor, the higher the dew point.

Front

Cloud formation

Back

Rising air expands, cooling to the dew point, and condensing into tiny droplets around a condensation nuclei.

Front

Heat capacity

Back

The amount of heat needed to raise the temperature of 1 g of a substance by 1^oC

Front

The heat capacity of water vs. sand

Back

Water has a higher heat capacity than sand causing the need for more heat energy to be added/removed in order to change its temperature.

Front

Latent heat

Back

The energy added/removed to cause a phase change. This addition/removal of energy doesn't change the temperature.

Front

Dry air feels colder...

Back

...because the evaporation rate of sweat off your skin is greater.

Front

Heat capacity and climate

Back

Areas near water have smaller annual temperature changes due to water's high heat capacity.

Front

Dew point and weather prediction

Back

When the temperature is close/same as the dew point, the chance for precipitation increases. The overnight low temperature will never be colder than the dew point.