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

This equation in the attached document appeared in thermal physics as a mathematical identity. I like to know mathematically how it is derived.

3. The attempt at a solution

I don't know where to start

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Where did this equation come from?

**Physics Forums | Science Articles, Homework Help, Discussion**