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Q.
If $A B$ is an isothermal, $B C$ is an isochoric and $A C$ is an adiabatic curve; which of the graph correctly represents them in figure
Thermodynamics
Solution:
As slope of adiabatic $A C$ is more than the slope of isothermal $A B$, and $B C$ is isochoric (i. e., at constant volume), therefore, Fig. (b) represents the curves correctly.