In van der Waal equation $\left[ {P + {a \over {{V^2}}}} \right]$ [V $-$ b] = RT; P is pressure, V is volume, R is universal gas constant and T is temperature. The ratio of constants ${a \over b}$ is dimensionally equal to :
Solution
<p>From the equation</p>
<p>$[a] \equiv [P{V^2}]$</p>
<p>$[b] \equiv [V]$</p>
<p>$\Rightarrow \left[ {{a \over b}} \right] \equiv [PV]$</p>
About this question
Subject: Physics · Chapter: Thermodynamics · Topic: Zeroth and First Law
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