Essential University Physics: Volume 1 (4th Edition)

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 19 - Section 19.2 - The Second Law of Thermodynamics - Example - Page 348: 19.1


418 degrees Celsius

Work Step by Step

We know that 140 Joules of work is done, for this is the change in energy. Thus, we find the efficiency: $= \frac{140}{240}=.583$ Thus, it follows: $ T_h=\frac{T_c}{1-.583} = \frac{288K}{1-.583} \approx 691 K \approx 418 ^{\circ}C$
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