Answer the following questions: a.How will you explain the first law of thermodynamics? Give a specific example. b.What law explains the mechanism of heat engines? Support your answer. c. Why do machines are not 100% efficient?

Answer the following questions: a.How will you explain the first law of thermodynamics? Give a specific example. b.What law explains the mechanism of heat engines? Support your answer. c. Why do machines are not 100% efficient?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter15: Thermodynamics

Section: Chapter Questions

Problem 6PE: (a) How much food energy will a man metabolize in the process of doing 35.0 kJ of work with an...

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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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Answer the following questions:

a.How will you explain the first law of thermodynamics? Give a specific example.

b.What law explains the mechanism of heat engines? Support your answer.

c. Why do machines are not 100% efficient?

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