Air weight
How much does of air weigh in kg
Details and assumptions:
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The air is at 21°C
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The pressure is 1atm
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the air is 70%N2, 29%O2, and 1%Ar
The answer is 1.2.
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1 solution
At a temperature of 20 °C and a pressure of 101.325 kPa (standard pressure),dry air has a density of 1.2041 kg/m3.So the weight of 1 cubic meter of air under those conditions is 1.2041 kg.