Homework Help: Physics

Posted by Q on Thursday, November 22, 2012 at 6:35pm.

A refrigerator does 18kJ of work while moving 115 kJ of thermal enegy from inside the refrigerator. What is its coefficient of performance?

Physics - drwls, Friday, November 23, 2012 at 2:09am
Refrigerators do not do work. Work has to be done UPON them to transfer heat out. I will assume that they meant to say 18 kJ of work IS CONSUMED by the refrigerator.

Refrigerator C.O.P. = Qout/Win
= 115/18 = 6.38

Answer this Question

Related Questions

physics - A certain refrigerator is rated as being 39% as efficient as a Carnot ...
physics - A certain refrigerator is rated as being 39% as efficient as a Carnot ...
heat - what cools the air in a household refrigerator? what cools the air in a ...
Physics - A refrigerator has a coefficient of performance of 4.0. When removing...
physics - You are trying to slide a refrigerator across a horizontal floor. The ...
physics multiple choice - A worker pushes horizontally on a 2000 N refrigerator...
physics multiple choice - A worker pushes horizontally on a 2000 N refrigerator ...
Physics - A person pushes on a 60-kg refrigerator with a horizontal force of -...
Math I REALLY NEED HELP!!!!!!!!! - A refrigerator has inside measuremnets of 50 ...
physics - two movers have to lift a refrigerator into a truck. one of the movers...

For Further Reading

First Name:
School Subject:
Answer: