P-V plots for two gases during adiabatic...

P-V plots for two gases during adiabatic processes are shown in the figure. Plots 1 and 2 should corresponds respectively to

`He` or `O_2`

`O_2` and `He`

`He` and `Ar`

`O_2` and `N_2`

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The correct Answer is:

Higher value of `gamma`, curve is more steeper
For monoatomic gas, `gamma_1=1.67`, for diatomic gas
`gamma_2=1.4`
`gamma_1gtgamma_2` i.e., Curve `2rarr` Monoatomic gas
curve `1rarr` Diatoamic gas

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