humidity Flashcards
1
Q
humidity
A
amount of water vapour in atmosphere
2
Q
absolute humidity
A
total mass of water vapour in air per unit volume. independant of temp
3
Q
relative humidity
A
ratio of amount of water vapour in air compared with amount that would be present at same temp if air was fully saturated. Temp dependant
4
Q
dew point
A
temp at which relative humidity of air exceeds 100% saturation and water condenses out of the vapour phase to form liquid