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College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 104GP
What are (a) the heat QH extracted from the hot reservoir and (b) the efficiency for a heat engine described by the pV diagram of Figure P12.104?
Figure P12.104
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Students have asked these similar questions
E14 An engineer designs a heat engine using flat-plate
solar collectors. The collector deliver heat at 72°C
and the engine releases heat to the surroundings at
33°C. What is the maximum possible efficiency of
this engine?
A certain coal-fired power plant has a rated power capacity of P = 960 MW. The output of this plant is W = 0.39QH, where QH is the energy input as heat from the hot reservoir.
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b. Which would increase the efficiency more, doubling QH or reducing QC by half?
c. Calculate the maximum thermal efficiency of the power plant.
d. Calculate the absolute value of the exhausted heat (QC) each second in MJ for the power plant.
The pV diagram in (Figure 1) shows the cycle followed by the gas in an ideal-gas heat engine. 260 J of heat energy flow into gas from the hot reservoir during process 1→2.
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Chapter 12 Solutions
College Physics: A Strategic Approach (3rd Edition)
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