If and are partial pressure of and saturated vapour pressure of respectively

CHEMISTRY · Single correct · AoPS · Mathematics · Ratios and Percents · Percent

Problem

P_g

and

P_v

are partial pressure of

\text{H}_2\text{O}_v

and saturated vapour pressure of

\text{H}_2\text{O}_v

respectively, then % relative humidity is given by: (1)

\frac{P_v}{P_g} \times 100

(2)

\frac{P_g}{P_v} \times 100

(3)

\frac{P_g + P_v}{P} \times 100

(4)

\frac{P_g - P_v}{P_g} \times 100