-->

Mechanical Properties Of Fluids

Question
CBSEENPH11019694

Find the relative humidity on a day when partial vapour pressure of water vapours present in the room is 0.014x105 Pa. The saturated vapour pressure at room temperature is 0.02xl05 Pa.

Solution
Here partial vapour pressure of water vapours at room temperature is, 
p = 0.014 x 10Pa 
The saturated vapour pressure at room temperature is, P = 0.02 x 10Pa 
Now, the relative humidity is, 
P e r c e n t a g e space straight R. straight H. space equals straight P over straight P cross times 100
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space fraction numerator 0.014 cross times 10 to the power of 5 over denominator 0.02 cross times 10 to the power of 5 end fraction cross times 100 space
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 70 percent sign