d) The heat driving the generators is in the form of superheated steam at 260 °C. If a Carnot engine had been used instead, what would it's efficiency be? Efficiency = e) How much work was lost (left undone) because a Carnot engine was not used? Wcarnot - Wactual =
d) The heat driving the generators is in the form of superheated steam at 260 °C. If a Carnot engine had been used instead, what would it's efficiency be? Efficiency = e) How much work was lost (left undone) because a Carnot engine was not used? Wcarnot - Wactual =
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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I need help with the last two parts please.
Transcribed Image Text:A large electrical power station generates 1400 MW of electricity with an efficiency of 31 %.
a) How much heat does the power station need to generate this amount of electricity in one day?
Qh = 401341935500000
J
b) How much heat is exhausted to the environment in one day?
Qc
276925935500000
J
c) The exhaust heat is transferred to the ambient air at 15 °C. What is the change in entropy of the
surrounding air in one day?
AS = 929281662800
J/K
d) The heat driving the generators is in the form of superheated steam at 260 °C. If a Carnot engine had
been used instead, what would it's efficiency be?
Efficiency
%3D
e) How much work was lost (left undone) because a Carnot engine was not used?
WCarnot - Wactual
%3D
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