## Second Law Explanation

$\Delta S = \frac{q_{rev}}{T}$

Alexia Joseph 2B
Posts: 56
Joined: Thu Jul 27, 2017 3:01 am

### Second Law Explanation

Can someone explain to me briefly what the second law of thermodynamics is for and why we use it?

Krupa Prajapati
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am

### Re: Second Law Explanation

Hi! The second law of thermodynamics states that total entropy can never decrease over time for an isolated system, and stays constant if the system is in equilibrium or in a reversible process. We use this law because it correlates with spontaneity, as spontaneity is a function of entropy.