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

We have three metal cubes, the same material, same size. Two cubes

have temerature 300K, third 100K.

On what maximal temperature can

we heat the on of the cubes?

3. The attempt at a solution

If we want to get higher temperature than 300K we need to

use the gradient of temperatures two cubes to get some work,

which we can after use to heating the third cube. I tried to place

ideal heat machine, which work on base of carnot cycle between

the two cubes (one 300K other 100K) - but I just have two temperatures

and on wiki is written, that to work from carnot cycle I need entrpy too.

So I don't know how to continue.

Thanks for any help.

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# Homework Help: Thermodynamics - maximalization of temperature

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