JEE MAIN - Physics (2022 - 29th June Morning Shift - No. 11)
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 :
$${P \over V}$$
$${V \over P}$$
PV
PV3
Paaiškinimas
From the equation
$$[a] \equiv [P{V^2}]$$
$$[b] \equiv [V]$$
$$ \Rightarrow \left[ {{a \over b}} \right] \equiv [PV]$$