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A vessel contains 1 mole of O2 gas (rela...

A vessel contains 1 mole of `O_2` gas (relative molar mass 32) at a temperature T. The pressure of the gas is P. An identical vessel containing one mole of He gas (relative molar mass 4) at temperature 2T has a pressure of

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The correct Answer is:
2
Using `P = (nRT)/(V)`, we get
`(P_(He))/(P_(O_(1))) = (2 T)/(V) (V)/(T) = 2`
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