Monday, December 19, 2016

Entropy and Temperature in an Insulated System AskPhysics

A system consists of a refrigerator with its door open operating in a thermally insulated room. What are the change in the entropy of the system and the change in temperature of the room?

Entropy Change of System

A. Increases

B. Decreases

Temperature Change of Room

A. Increases

B. Decreases

I put down B for both, as the refrigerator is cooling the entire room with its door open, and a colder temperature means a decrease in entropy. However, the answer is A for both. I do not understand how temperature increases. If I know that temperature increases, it is logical to me that entropy will increase. But getting A for the temperature change of the room seems weird to me. Any help will be greatly appreciated, thanks in advance.



Submitted December 20, 2016 at 10:18AM by arjundupa http://ift.tt/2hTWJAz AskPhysics

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