Class 11 NEET Physics Thermodynamics and Kinetic Theory

According to ideal gas equation
PV=nRT or V=

nRT

P

For an isobaric process, P = constant and V∝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
(slope)2>(Slope)1
∴P2<P1