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3) How hot should air be heated in a hot-air balloon for it to take of? A hot-air balloon requires a density of .156kg/m3 to become airborne.

3) How hot should air be heated in a hot-air balloon for it to take of? A hot-air balloon requires a density of .156kg/m3 to become airborne.

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1) A)Calculate the density of normal air at 22C= 295K. Assume the pressure is 1atm=101.3kPa. There is one mole of air. Find the mass and the volume of air, then divide to get the density. Air is about 20% 02 and 80% N2.(02=32g/mol N2=28g/mol) 6.4 22,4 tow does B) Hase dese the density change if you measured at OC=273K doలో 2) How dese the density of He-gas at 22C compare to the density of air at 22C? (He-5 g/mol) 3) How hot should air be heated in a hot-air balloon for it to take of? A hot-air balloon requires a density of .156kg/m3 to become airborne.
Transcribed Image Text:1) A)Calculate the density of normal air at 22C= 295K. Assume the pressure is 1atm=101.3kPa. There is one mole of air. Find the mass and the volume of air, then divide to get the density. Air is about 20% 02 and 80% N2.(02=32g/mol N2=28g/mol) 6.4 22,4 tow does B) Hase dese the density change if you measured at OC=273K doలో 2) How dese the density of He-gas at 22C compare to the density of air at 22C? (He-5 g/mol) 3) How hot should air be heated in a hot-air balloon for it to take of? A hot-air balloon requires a density of .156kg/m3 to become airborne.
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