Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 15 - The Laws of Thermodynamics - Misconceptual Questions: 2

Answer

Choice C.

Work Step by Step

In an isothermal process, the change in internal energy is zero, and Q = W. In an isothermal compression, 100 J of work can be converted into 100 J of heat. In an isothermal expansion, 100 J of heat is converted into 100 J of work. Choice A is tempting because the second law of thermodynamics says it is impossible to make a 100 percent efficient heat engine. However, the question does not say that we must consider a complete cycle.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.