- #1
Raddy13
- 30
- 0
I was helping my cousin with her Physics II class and they just started discussing entropy in the Thermo section of the class and her teacher gave the "measure of disorder in a system" definition which I personally hate because even though it might be technically accurate, it doesn't really explain the concept. So I was trying to think of a better way to explain it to her, and I came across a definition on a website that said entropy was a measure of the energy in a system that's unavailable to do work, which didn't make sense to me. In an internal combustion engine, combustion of the fuel increases the entropy in the system and the combustion drives the cycle. Also, the integral of the T-s diagram is the heat transferred to the system, so you can't have net work without entropy, right?