Define 2nd law of thermodynamics in two ways

ZedCar

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

Define the second law of thermodynamics in two different ways and show these two ways are equivalent.

2. Relevant equations



3. The attempt at a solution

Could anyone give me any pointers as to what this might mean? I know what the 2nd law of thermodynamics states, but how would I define it in two different ways?

Thank you.

Andrew Mason

It is a reference to the different statements of the second law by Clausius and by Lord Kelvin.

AM