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(C) The Van der Waals equation is given by,$(P + \frac{a}{V^2})(V - b) = RT$At low pressure,the volume $V$ is very large,so the correction factor $b$

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Low pressure and high temperature

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(C) The Van der Waals equation is given by,$(P + \frac{a}{V^2})(V - b) = RT$At low pressure,the volume $V$ is very large,so the correction factor $b$ can be neglected compared to $V$.At high temperature,the kinetic energy of molecules is high,making the attractive forces represented by the term $\frac{a}{V^2}$ negligible.Under these conditions of low pressure and high temperature,the equation simplifies to $PV = RT$,which is the ideal gas equation.

The Van der Waals equation reduces itself to the ideal gas equation at

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