Explanation:
i) When we divide water vapor's partial pressure by the water's equilibrium vapor pressure at a given temperature we get relative humidity.
It is denoted by ∅
[tex]\phi ={\frac {p_ {H_{2}O} }{p_{H_{2}O} ^{*}}}[/tex]
ii) When air is cooled so that it becomes saturated with water vapor the temperature where this occurs is called the dew point.
