# NEET Physics Thermodynamics Questions Solved

Which of the following graphs correctly represents the variation of $\beta =-\left(dV/dP\right)/V$ with P for an ideal gas at constant temperature

(1)

(2)

(3)

(4)

(1) For an isothermal process PV = constant

$PdV+VdP=0$$-\frac{1}{V}\left(\frac{dV}{dP}\right)=\frac{1}{P}$

So, $\beta =\frac{1}{P}$

∴ graph will be rectangular hyperbola.

Difficulty Level:

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