1. Is it possible to operate a heat engine with only a high-temperature heat reservoir?? 2. Is it possible for a heat engine's thermal efficiency engine to reach 100% if all irreversibilities are eliminated? 3. A cup of coffee that has been left on a table to cool to room temperature. Is the process reversible for what reason?

1. Is it possible to operate a heat engine with only a high-temperature heat reservoir?? 2. Is it possible for a heat engine's thermal efficiency engine to reach 100% if all irreversibilities are eliminated? 3. A cup of coffee that has been left on a table to cool to room temperature. Is the process reversible for what reason?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.46P

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