I will teach some basic physics concepts to a group of university students not having to do with maths, physics, engineering and the like (mainly students of law, of political sciences and of similar fields).

I have prepared my notes regarding conservation laws and I want to add a couple of things about the second principle of the thermodynamics.

I want to present it without the need to introduce the entropy (I prefer talk about disorder) but I am puzzled of how to avoid the "jungle" of maths and definitions.

Any ideas of how to proceed?