Question
A vessel contains 1 mole of O2 gas (molar mass 32) at a temperature T. The pressure of the gas is P. An identical vessel containing one mole of He gas (molar mass 4) at a temperature 2T has a pressure of
Answer: Option C
:
C
For a gas, PV=nRT. Hence
(P)O2=(1mole)RTV
and (P)He=(1mole)R(2T)V
∴(P)He(P)O2=2 or (P)He=2(P)O2
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:
C
For a gas, PV=nRT. Hence
(P)O2=(1mole)RTV
and (P)He=(1mole)R(2T)V
∴(P)He(P)O2=2 or (P)He=2(P)O2
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