Q.
A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27OC. Its density is : (R=8.3Jmol-1K-1)
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a
0.2 kg/m3
b
0.1 kg/m3
c
0.02 kg/m3
d
0.5 kg/m3
answer is A.
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Detailed Solution
PV=nRTd=PMRT=249×103×2×10−38.3×300Kg/m3d=0.2Kg/m3
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