Determine the relative humidity if: 1) at a temperature of +20 ° C, 1 m3 of air contains 5 g of water.

Determine the relative humidity if: 1) at a temperature of +20 ° C, 1 m3 of air contains 5 g of water. 2) at a temperature of 0 ° C, 1 m3 of air contains 2.5 g of water.

1) at a temperature of +20 ° C, 1 m3 of air can contain 17 g, but in fact, only 5 g is contained in the air.
We write down the ratio of the actual content of water vapor in the air to the maximum possible for this temperature:
(5/17) * 100 = 29.4% – relative humidity.
2) at a temperature of 0 ° C, 1 m3 of air may contain 5 g, but in fact, only 2.5 g is contained in the air.
(2.5 / 5) * 100 = 50% relative humidity.