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krhisjun
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Im trying to do an assingment for second year BSc, I've thrown a lot of effort into quantum this semester so have fallen a little behind with thermodynamics so help is appreciated!
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
https://www.physicsforums.com/latex_images/24/2495626-1.png
Copied the formulas so hoping they have come out alright.
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 don't feel confident I've done it right.
Cheers for any help in advance.
Khris
Homework Statement
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
Homework Equations
https://www.physicsforums.com/latex_images/24/2495626-1.png
Copied the formulas so hoping they have come out alright.
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 don't feel confident I've done it right.
Cheers for any help in advance.
Khris
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