P – V plots for two gases during adiabatic processes are shown in the figure. Plots 1 and 2 should correspond respectively to
Text Solution
Verified by ExpertsThe correct answer is:
B
For an adiabatic process, 
constant,
Differentiating, we have
Thus the slope of 
curve is proportional to 
Now, for a diatomic gas, 
is less than that for a monoatomic gas for which 
.
Therefore, the slope of the 
curve is less for a diatomic gas than for a monoatomic gas. Hence curve 1 corresponds to diatomic gas and curve 2 to monoatomic gas.
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