One mole of perfect gas, initially at a ...

One mole of perfect gas, initially at a pressure and temperture of `10^(5)Nm^(-2)` and 300 K, respectively, expands isothermally until its volume is doubled and then adiabatically until its volume is again doubled. Find the final pressure of the gas. Given `gamma=1.4`.

`(0.5)^(2.4)xx10^(5)Nm^(-2)`

`(0.5)^(1.4)xx10^(5)Nm^(-2)`

`(0.5)^(2.4)xx10^(6)Nm^(-2)`

`(0.5)^(1.4)xx10^(6)Nm^(-2)`

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