Question

In van der Wall equation

$[P=\frac{a}{V^2}[v-b]=RT;$

P is pressure, V is volume, R is universal gas constant and T is temperature. The ratio of constants a/b is dimensionally equal to:

• A. $\frac{P}{V}$
• B. $\frac{V}{P}$
• C. PV
• D. PV 3

Answer 1

Answer: (C)

PV

Answer 2

The correct otpion is(C): PV

From the equation

[a] ≡ [PV 2] [b] ≡ [V]

$⇒[\frac{a}{b}]≡[PV]$