If 240mL of a gas X diffuses through a porous membrane in 20 min whereas the same volume of methane diffuses in 10 min at the same temperature and pressure, the molar mass in g mol–1 of gas X is
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a
128
b
8
c
64
d
32
answer is C.
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Detailed Solution
when volumes diffused are same then:t∝MtxtCH4=MxMCH42010=Mx16Mx=64
If 240mL of a gas X diffuses through a porous membrane in 20 min whereas the same volume of methane diffuses in 10 min at the same temperature and pressure, the molar mass in g mol–1 of gas X is