Question
Question: P – V plots for two gases during adiabatic processes are shown in the figure. Plots 1 and 2 should c...
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 O2
B
O2 and He
C
He and Ar
D
O2 and N2
Answer
O2 and He
Explanation
Solution
Slope of the curve =dVdP=−γVP.
As curve 2 is steeper, its γ is greater. Also, γ = 5/3 for monoatomic gas and γ = 7/5 for diatomic gas.
Hence (2) is the correct answer.