The mass of water vapour in a given volume of air is 0.05g at 20°C, while the mass of water vapour required to saturate it at the same temperature is 0.15g. Calculate the relative humidity of the air. by Sunday | May 23 | Physics WAEC | 0 comments A. 3.33% B. 5.55% C. 33.33% D. 55.55% Correct Answer: Option C C. 33.33% Users Also Read These:The pressure of a given mass of a gas changes from…A tap supplies water at 26°C while another supplies…The weight of water vapour contained in a given…The mass of water vapour in a given volume of air is…A tap supplies water at 30°C while another supplies…