Task id9124
At a temperature t = 20°C and a pressure p = 760 mm Hg = 105 N/m2, the air has a humidity of 100%. By what percentage is it lighter than dry air of the same temperature and with the same pressure? The molecular weight of dry air is 29 kg/kmol, and the saturation vapor pressure of water at 20°C is 2330 n/m2.
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