Density of a gas at 276K and 380 mm pressure is 3.0 gram/litre. Weight – InterviewSolution

1.

Density of a gas at 276K and 380 mm pressure is 3.0 gram/litre. Weightof 1.25 mole of the gas in grams is

Answer»

PV=nRTPV=(m/M)RTPM=dRT

P:Pressurem:mass of the gasM:Molecular Massd:DensityR:Universal Gas ConstantT:Temperature.

P=380 mm= 0.5 atm=50662.5T=276 Kd=3g/l=3 kg/m3

M=dRT/PM=0.06793 kg1.23 M=.08492 kg=84.92 gm

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