I solved the problem, but I can't get the right unit for the answer.(adsbygoogle = window.adsbygoogle || []).push({});

A Carnot engine whose low-temperature reservoir is at 16°C has an efficiency of 31%. By how much should the temperature of the high-temperature reservoir be increased to increase the efficiency to 70%?

My numerical answer is 544.8. I tried Kelvin first - the most obvious choice - but that was wrong. Then I tried celcius and J/K.

I tried to work it out but I have no earthly idea - the other choices include:

- C0 (like the celcius sign but the circle isafterthe C)

-J/kg*K

-J/mol*K and

-kJ/kg

Any help would be grately appreciated.

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# Question about Units

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