Question

In the following pressure-volume diagram, the isochoric, isothermal and isobaric parts, respectively, are

• A. BA, AD, DC
• B. DC, CB, BA
• C. AB, BC, CD
• D. CD, DA, AB

Answer 1

The correct option is D CD, DA, AB

We know that $PV=nRT$

If volume V is constant, process is called isochoric. So, CD is isochoric.

If pressure P is constant , process is called isobaric. So, AB is isobaric.

If temperature T is constant, process is called isothermal.

If T is constant than PV = constant. So, graph will be rectangular hyperbola.

So, BC and AD are isothermal process.