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A rigid container contains helium gas at 150 KPa and 127oC. If R=8.3Jmol1K1, the density of the gas is 

a
1.2×10−2 kg/m3
b
0.8×10−1 kg/m3
c
0.18 kg/m3
d
0.06 kg/m3

detailed solution

Correct option is C

PV=nRT⇒P=(mV).RTM P=ρRTM⇒ρ=PMRT ∴ ρ=150×103×4×10−38.3×400kg/m3=0.18 kg/m3

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