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Chapter 18 humidity
| Question | Answer |
|---|---|
| Evaporation | when water is being vaporized out of the air |
| Condensation | when waer is being transferred from gas to a liquid |
| Sublimation | When a liquid turns into a solid (vice versa.) |
| Deposition | to subfreeze air. water becomes a solid without starting off as a liquid |
| Capacity | the amount of water the air can hold |
| Saturation | the maxiumum amount of water the air can hold |
| psychrometer | a device to measure theR.H. of a certain area |
| S.H. | The physical amonunt of water in the air |
| Dew Point | The pint of specific temperature when the air is saturated |
| R.H. | The ratio of water vapor in the air to the saturated air (expressed as a percentage) |
| Condensation nuclei | tiny suspended particle, either solid or liquid |
| Adiabatic temp. change | a process that takes place without a transfer of heat between the system and its surroundings |
| moist lapse rate | .6 degrees for every 100 meters |
| dry lapse rate | 1 degree for every 100 meters |