The P-V diagram for an ideal gas in a piston cylinder assembly undergoing a thermodynamic process is shown in the figure. The process is

(1) isothermal

(2) adiabatic

(3) isochoric

(4) isobaric

Ans : (4) isobaric

Explanation :

In given P-V diagram, volume of gas increases but pressure remains constant, so it is isobaric process.

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