# Homework Help: Another Entropy Question

1. Dec 17, 2008

### bpaterni

1. The problem statement, all variables and given/known data
Each end of a metal wire is in thermal contact with a different heat reservoir.
Reservoir 1 is at a temperature of 752 K, and reservoir 2 is at a temperature of
345 K. Compute the total change in entropy that occurs from the conduction of
1096 J of heat through the wire.

2. Relevant equations
dS = dQ / T

3. The attempt at a solution
I'm really unsure how to solve this question. Would I do something like this:

-1096/752 + 1096/345 =
-1.457 + 3.177 = 1.72 J/K

Or am I totally off base on this one?

2. Dec 17, 2008

### Andrew Mason

I am not sure why you are unsure. You have the right equation and you have the right answer.

AM

3. Dec 17, 2008

### bpaterni

Wow, okay... Thanks for the reassurance then! :)

The question has a point value of 6 points out of a 25 point homework assignment, so I thought there might be more to it than that, but apparently I thought wrong.