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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

Text Solution

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From standard gas equation
`P =(nRT)/(V)`
`:. (P_(He))/(P_("oxy")) = ((n_(He))/(n_("oxy")))*((T_(He))/(T_("oxy")))*((V_("oxy"))/(V_(He)))`
`= 1 xx ((2T)/(1)) xx1`
`P_(He) = 2 P_("oxy") = 2P`.
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