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  4. In pressure-volume diagram, the isochoric, isothermal, isobaric and iso-entropic parts respectively, are

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Q. In pressure-volume diagram, the isochoric, isothermal, isobaric and iso-entropic parts respectively, arePhysics Question Image

Thermodynamics

Solution:

From $C$ to $D, V$ is constant. So process is isochoric. From $D$ to $A$, the curve represents constant temperature. So the process is isothermal.
From $A$ to $B$, pressure is constant . So, the process is isobaric. $BC$ represents constant entropy.