Physical Chemistry
Physical Chemistry
3rd Edition
ISBN: 9780321812001
Author: ENGEL, Thomas/ Reid
Publisher: Pearson College Div
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Chapter 1, Problem 1.40NP
Interpretation Introduction

Interpretation:The van der Waals equation needs to be rewritten using the molar volume rather than V and n.

Concept Introduction: The ideal gas equation is the equation which gives the relations between P,V, n and T of gases. It can be written as:

  PV = nRT

Here, P is pressure, V is volume, n is number of moles, R is Universal gas constant and T is temperature.

Usually gases do not follow ideal behavior under all conditions of pressure, temperature and volumes. The relation of P, V, n and T of real gases can be given by Vander Waals equation is as follows:

  (P + n2aV2) (V- n b) = nRT

Hence P = nRT V-nb - n2aV2

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