At what temperature is the average kinetic energy of an atom in helium gas equal to 6.21 10-21 J? ...

Author Question: At what temperature is the average kinetic energy of an atom in helium gas equal to 6.21 10-21 J? ... (Read 193 times)

jeatrice

Hero Member
Posts: 543

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

Sr. Member
Posts: 345

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

Hero Member
Posts: 543

Reply #2 on: Jul 27, 2018

dpost18

Sr. Member
Posts: 345

Reply #3 on: Jul 27, 2018

You're welcome

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