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  4. A cyclic process ABCA shown in the V-T diagram is performed with a constant mass of an ideal gas. The same process in the P-V diagram is <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-vuitexcqpjmb.png />

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Q. A cyclic process $ABCA$ shown in the $V-T$ diagram is performed with a constant mass of an ideal gas. The same process in the $P-V$ diagram is

Question

NTA AbhyasNTA Abhyas 2020Thermodynamics

Solution:

From the $V-T$ diagram, process $A$ to $B$ is an isobaric expansion which is only in option $A$ .
Process $B$ to $C$ is isochoric with a decrease in temperature and hence the pressure.
Process $C$ to $A$ is an isothermal compression.