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 | Jan 4 | 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 initial volume and pressure of a given mass of…The weight of water vapour contained in a given…A given volume of methane diffuses in 20s. How long…The mass of water vapour in a given volume of air is…A tap supplies water at 30°C while another supplies…