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Q.
In the given $(V - T)$ diagram, what is the relation between pressures $P_1 $ and $P_2 ?$
Thermodynamics
Solution:
According to ideal gas equation
$PV = nRT$
or $V=\frac{n R T}{P}$
For an isobaric process,
$P=$ constant and $\vee \infty T$
Therefore, $V - T$ graph
is a straight line passing through origin. Slope of this line is inversely proportional to $P$.
In the given figure,
$(\text { Slope })_{2} >(\text { Slope })_{1}$
$P_{2}< P_{1}$
