an automobile engine has a thermal efficiency of 48%. the temperature of the fuel is 350 C, and the surrounding air is at 25 C. Does the operation of this engine violate the second law of thermodynamics

an automobile engine has a thermal efficiency of 48%. the temperature of the fuel is 350 C, and the surrounding air is at 25 C. Does the operation of this engine violate the second law of thermodynamics

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 10CQ

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Concept explainers

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.

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Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

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