798Chemical EngineeringMedium
Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity? Vapour pressure of water at 20°C is 17.5 mm Hg?
A80
B79.62
C78.51
D80.38
Correct answer
B. 79.62
Explanation
The correct answer is 79.62.