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Author Question: At what temperature is the average kinetic energy of an atom in helium gas equal to 6.21 10-21 J? ... (Read 195 times)

jeatrice

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on: Jul 27, 2018
At what temperature is the average kinetic energy of an atom in helium gas equal to 6.21  10-21 J?
 
  What will be an ideal response?

Question 2

A Carnot refrigerator has a COP of 2.0.
 
  (a) What is its efficiency operated as an engine?
  (b) Operated as an engine, heat is taken in at 500.C; what is the exhaust Celsius temperature?


dpost18

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

300. K

Answer to Question 2

(a) 33.
(b) 242.C


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jeatrice

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Reply #2 on: Jul 27, 2018
TY


dpost18

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Reply #3 on: Jul 27, 2018
You're welcome


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