Chapter 5, Problem 5.22QP

Interpretation Introduction

Interpretation:

The physical meaning of constants a and b in van der Waals equation has to be explained.

Concept Introduction:

Van der Waals equation:

$\left[\text{P+a}{\left(\frac{\text{n}}{\text{V}}\right)}^{\text{2}}\right]\left(\frac{\text{V}}{\text{n}}\text{ - b}\right)\text{=RT}$

Where,

$\begin{array}{l}\text{P }\text{=}\text{pressure = pascal (Pa)}\\ \text{R}\text{= ideal}\text{gas}\text{constant = 8}\text{.314}\frac{\text{joule}}{\text{mole}\text{.Kelvin}}\\ \text{T}\text{=}\text{absolute}\text{temperature}\text{in}\text{kelvin}\\ \text{M}\text{=}\text{molar}\text{mass}\text{of}\text{the}\text{molecule}\text{in}\text{kilograms}\\ \text{V}\text{=}\text{Volume =}{\text{m}}^{\text{3}}\\ \text{n=}\text{no}\text{of}\text{molecule}\text{=}\text{mole}\end{array}$