In the van der Waals equation of state for a | vedclass

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(A) The van der Waals equation for $1 	ext{ mole}$ of a real gas is given by: $(P + \frac{a}{V_m^2})(V_m - b) = RT$. In this equation,the term $\frac

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$P + \frac{a}{V_m^2}$

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(A) The van der Waals equation for $1 	ext{ mole}$ of a real gas is given by: $(P + \frac{a}{V_m^2})(V_m - b) = RT$. In this equation,the term $\frac{a}{V_m^2}$ accounts for the intermolecular attractive forces between gas molecules. The term $(V_m - b)$ accounts for the excluded volume due to the finite size of the gas molecules. Therefore,the term representing intermolecular forces is $P + \frac{a}{V_m^2}$.

Gas	$Ar$	$Ne$	$Kr$	$Xe$
$a / (atm \ dm^6 \ mol^{-2})$	$1.3$	$0.2$	$5.1$	$4.1$
$b / (10^{-2} \ dm^3 \ mol^{-1})$	$3.2$	$1.7$	$1.0$	$5.0$

In the van der Waals equation of state for a real gas,the term representing intermolecular forces is .......

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