Determine the ratio of the weight of 1 m3 of dry air to the weight of 1 m3 of air with a humidity of 50%. Both portions were taken at atmospheric pressure and a temperature of 20° C. The ratio of the molecular weight of water to the molecular weight of air is taken to be 0.6. The elasticity of water vapor at a temperature of 20 ° C is 17.5 mm Hg. Art.

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