Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 20 - Entropy and the Second Law of Thermodynamics - Problems - Page 608: 62e

Answer

$V_2 = 0.226 m^3$

Work Step by Step

To find the volume in state 2, we should use the equation $W = nRT ln (\frac{V_2}{V_1})$ From the answer in (d), $W = 700J$ From the question , $V_1 = 0.200 m^3$ and $T = 350 K $ $n = 2.00 mol$ $R = 8.314 J/k.mol $ Rearrange the equation to solve for $V_2$ and substitute all the values into the equation. $\frac{W}{nRT} = ln (\frac{V_2}{V_1})$ $e^\frac{W}{nRT} = \frac{V_2}{V_1}$ $V_2 = (V_1) e^\frac{W}{nRT}$ $V_2 = (0.200 m^3) e^\frac{700J}{(2.00 mol)(8.314 J/k.mol )(350 K)}$ $V_2 = (0.200 m^3) e^{0.12}$ $V_2 = (0.200 m^3) 1.13$ $V_2 = 0.226 m^3$
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