Physical Chemistry
Physical Chemistry
3rd Edition
ISBN: 9780321812001
Author: ENGEL, Thomas/ Reid
Publisher: Pearson College Div
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Chapter 1, Problem 1.3NP
Interpretation Introduction

Interpretation:The pressure exerted by Ar needs to be determined using the van der Waals equation of state. Whether the attractive or repulsive portion of the potential dominant needs to be determined.

Concept Introduction: The ideal gas equation is the equation that 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 as follows:

  (P + n2aV2) (V- n b) = nRT

Hence P = nRT V-nb - n2aV2

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