Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of

Question

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.

Options:

A . 80.38

B . 80

C . 79.62

D . 78.51

Answer: Option C

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