A typical coal-fired power plant burns 350 metric tons of coal every hour to generate 2.6x106 MJ of electricity. 1 metric ton = 1000 kg; 1 metric ton of coal has a volume of 1.5 m³. The heat of combustion is 28 MJ/kg. Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy. Correct Correct answer is shown. Your answer 88.11 m was either rounded different different number of significant figures than required for this part. Part B What is the power plant's thermal efficiency? Express your answer as a percentage. VE ΑΣΦ e = ? %

College Physics
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ISBN:9781305952300
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Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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A typical coal-fired power plant burns 350 metric
tons of coal every hour to generate 2.6x106 MJ of
electricity. 1 metric ton = 1000 kg; 1 metric ton of
coal has a volume of 1.5 m³. The heat of
combustion is 28 MJ/kg. Assume that all heat is
transferred from the fuel to the boiler and that all
the work done in spinning the turbine is
transformed into electrical energy.
Correct
Correct answer is shown. Your answer 88.11 m was either rounded differently
different number of significant figures than required for this part.
Part B
What is the power plant's thermal efficiency?
Express your answer as a percentage.
VE ΑΣΦ
e =
?
%
Transcribed Image Text:A typical coal-fired power plant burns 350 metric tons of coal every hour to generate 2.6x106 MJ of electricity. 1 metric ton = 1000 kg; 1 metric ton of coal has a volume of 1.5 m³. The heat of combustion is 28 MJ/kg. Assume that all heat is transferred from the fuel to the boiler and that all the work done in spinning the turbine is transformed into electrical energy. Correct Correct answer is shown. Your answer 88.11 m was either rounded differently different number of significant figures than required for this part. Part B What is the power plant's thermal efficiency? Express your answer as a percentage. VE ΑΣΦ e = ? %
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