# Does Gibbs free energy affect the reaction rate?

##### 1 Answer

Jun 8, 2015

The reaction rate is typically affected by concentration, pressure, temperature and surface area.

The Gibbs Free Energy equation consists of two variables, delta H which refers to the enthalpy of a system and delta S which is its' entropy.

The Gibbs Free Energy is important as it tells us if a chemical change is thermodynamically possible.

In order for a reaction to be spontaneous, delta G of the Gibs Free energy **must** be negative. To achieve that, delta H < 0 and delta S >0.

Therefore, it's the temperature and entropy that affects Gibbs Free Energy indirectly affects the reaction rate as well.

Citations:

"Gibbs Free Energy." Gibbs Free Energy. Web. 8 June 2015.