Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 18 - Section 18.3 - Specific Heats of an Ideal Gas - Example: 18.5

Answer

2.2R

Work Step by Step

We first find the internal energies of each of the gases: $E_{intO_{2}}= \frac{5}{2}nRT=5RT$ $E_{int_{Ar}}= \frac{3}{2}nRT=1.5RT$ Adding the internal energies, we find: $C_v=\frac{6.5RT}{nT}=\frac{6.5R}{3}=2.2R$
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