Physics WAEC

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.

A. 3.33%
B. 5.55%
C. 33.33%
D. 55.55%

Correct Answer: Option C

C. 33.33%

SEE ALSO A rectangular block of dimensions 2.0m x 1.0m x 0.5m weighs 200N. calculate the maximum pressure exerted by the block on a horizontal floor.
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