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

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12.Kinetic Theory of Gases

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

A

$He$ and $O_2$

B

$O_2$ and $He$

C

$He$ and $Ar$

D

$O_2$ and $N_2$

Solution

$Slope _{adiabatic}$ $\propto \gamma$

Slope of $1<$ Slope of $2$

$\gamma_{1}<\gamma_{2} \quad$ and $\gamma_{\mathrm{mono}}>\gamma_{\mathrm{dia}}$

So, $2$ is monoatomic $\& 1$ is diatomic $J$

Standard 11

Physics

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(KVPY-2017)