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Author Question: A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 106 kg of coal each day. ... (Read 140 times)

dakota nelson

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on: Jul 27, 2018
A coal-fired plant generates 600 MW of electric power. The plant uses 4.8  106 kg of coal each day. The heat of combustion of coal is 3.3  107 J/kg.
 
  The steam that drives the turbines is at a temperature of 300C, and the exhaust water is at 37C.
  (a) What is the overall efficiency of the plant for generating electric power?
  (b) What is the Carnot efficiency?

Question 2

How many moles are there in 2.0 kg of copper? (The atomic weight of copper is 63.5 and its specific gravity is 8.9.)
 
  What will be an ideal response?


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whitcassie

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Reply #1 on: Jul 27, 2018
Answer to Question 1

(a) 33
(b) 46

Answer to Question 2

32. moles


dakota nelson

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


whitcassie

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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