Im trying to do an assingment for second year BSc, ive thrown alot of effort into quatum this semester so have fallen a little behind with thermodynamics so help is appreciated!(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

Calculate the change in entrupy of the universe for the following processes

A can of beer, at initial temperature of 4 degrees C, and of heat capacity 2500JK^1 , is allowed to reach thermal equilibrium with its surroundings at 30 degrees C

2. Relevant equations

https://www.physicsforums.com/latex_images/24/2495626-1.png [Broken]

Copied the formulas so hoping they have come out alright.

3. The attempt at a solution

if the can has to increase temperature by 26 degrees K then needs to gain 65000 J of heat energy.

the surroundings must lose 65000J of heat energy so:

65000/277 + 65000/303 = 449.18 J / K

Its not a many mark question but i dont feel confident ive done it right.

Cheers for any help in advance.

Khris

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# Homework Help: Thermodynamics Entropy change of the universe

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