Chapter 8, Problem 33Q

Interpretation Introduction

Interpretation: For the given gases, Vander Waals constant (a) and the gas which showing strongest intermolecular attraction should be determined.

Concept introduction:

A modified ideal gas equation on account of molecular size and molecular interaction forces is termed as Van der Waals equation.

That is,                $\left[P+a{\left(\frac{n}{V}\right)}^2\right]\left(V-nb\right)=nRT$

‘a’ and ‘b’ is called Van der Waals coefficient and are characteristic of the individual gas

Here,

•  a is a measure of intermolecular attraction
• b is a measure of size of the molecule

Where,

          P = pressure in atmospheres

          V= volumes in liters

          n = number of moles

          R =universal gas constant ( $\text{0}\text{.08206L×atm/K×mol}$)

          T = temperature in kelvins