level: Driving processes
Questions and Answers List
level questions: Driving processes
| Question | Answer |
|---|---|
| what is latent heat | this is the energy that goes in or out during a change of state |
| is energy added or lost when going from solid to gas | added |
| is energy lost or added when going from gas to solid | lost |
| what happens to the energy that is lost during the change of state from gas to liquid | dissipated into the environment |
| how does evaporation occur | solar radiation hits water, energy is added, change of state from liquid to gas |
| what are the factors involved with evaporation | 1) amount of solar energy 2) availability of water 3) humidity, slower rate the closer the water is to saturation point 4) temp of air, warmer air holds more water vapour |
| why does what vapour condensate | as air cools, can hold less water vapour, if air becomes sufficently cooled becomes saturated, dew point, Excess water vapour changes state to liquid |
| what are the particles water condensate on | condensation nuclei (dust particles) |
| what form of latent heat is evaporation and condensation | latent heat of vapourisation |
| what form of latent heat is freezing and melting | latent heat of fusion |
| what form of latent heat is sublimination and deposition | latent heat of sublimination |