Air at a temperature of 20C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity? Vapour pressure of water at 20C is 17.5 mm Hg?

A. 80.38

B. 79.62

C. 80

D. 78.51

Be the first to comment if anything wrong with this mcq
Your comment successfully submitted!
It will automatically posted after review and approval by our staff member.