A cyclic process $ABCA$ is shown in the $V-T $ diagram. Process on the $P-V$ diagram is
Diffcult
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(c) From the given $VT$ diagram,
In process $AB, \,V \propto T$ ==> Pressure is constant (As quantity of the gas remains same)
In process $BC,\, V =$ Constant and
in process $CA, \,T =$ constant
$\therefore$ These processes are correctly represented on $PV$ diagram by graph $(c).$
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