Question 139 of 190

A thermodynamic cycle $xyzx$ is shown on a $V$ - $T$ diagram.

The $P$ - $V$ diagram that best describes this cycle is: (Diagrams are schematic and not to scale)

ABCD

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Answer: (A)

According to the ideal equation,
$PV=nRT$
In the given $V‐T$ diagram,
In process $x\rightarrow y$, $V\propto T$. So, the process is isobaric process.
In process $y\rightarrow z$, $V=$ constant. So, the process is an isochoric process.
In process $z\rightarrow x$, $T=$ constant. So, the process is an isothermal process.
Analyzing using the ideal gas equation in each process, the $P‐V$ graph can be drawn as shown below,

JEE Main Physics practice question on Thermodynamics (Thermodynamic Processes), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.