(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

In order to take a nice warm bath, you mix 60 litres of hot water at 55◦C with 30 litres of

cold water at 10◦C. How much new entropy have you created by mixing the water?

2. Relevant equations

[tex]Q=mc\Delta{T}[/tex]

[tex]dS=dQ/T[/tex]

3. The attempt at a solution

Greetings!

I am completely stuck on this question. I just can't work how I am supposed to find the change in internal energy of the system. I am geussing that T should be the final temperature of the whole system, but how to find it I do not know. If someone could please point me in the right direction I would very grateful!

Thanks

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# Homework Help: Calorimetry and Entropy

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