Thanks, but to be clear the problem is not really how to solve this, as far as I'm aware I've already solved it, unless someone corrects me. The problem I have now is explaining why it works. Andrew provided some insight into this but I'm still not convinced as to why the value of work is...
Thanks for your reply.
Which part looks shakey exactly? is your formulation
-95/275 + Qroom/295 = 0
Not equivalent to mine with Qh = Qroom?
-95/275 = -0.345
101.9/295 = 0.345
Andrew:
Interesting. I can't use that formulation of COP though as I only know Qc. Do you think my conclusions, that for this ideal case the entropy changes should cancel is reasonable? If so then there's nothing very dramatic I can change in the working.
If I understand you correctly what I...
N.B. My set question is actually almost identical to another posted here https://www.physicsforums.com/showthread.php?t=368672 but my question is not answered there.
Homework Statement
The temperature inside a refrigerator is 275K. The room containing it has a
temperature of 295K. In...