Chapter 7, Problem 7.4NP

Interpretation Introduction

Interpretation : The final temperature of Ar which did undergo an adiabatic expansion should be calculated using ideal gas and van der Waals equations of state.

Concept Introduction :

The change in internal energy for a Van der Waals gas is calculated as follows:

  $\Delta U_V=n^{2}a\left(\frac{1}{V_{m,i}}-\frac{1}{V_{m,f}}\right)$

Here,

  $\begin{array}{l}n\text{ - number of moles}\\ V_{m,i}\text{ - initial volume}\\ V_{m,f}\text{ - final volume}\end{array}$