The Gibbs Free Energy equation is given by the equation Wher
The Gibbs Free Energy equation is given by the equation:
Where:
= Gibbs Free Energy change
= Standard Gibbs Free Energy change
= temperature
= natural log of the reaction quotient
In order to solve for the natural log of the reaction quotient, in two steps you must:
Step One
Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right-hand side of the expression:
(fill in the blank.)
_______ +G = ______ +G° + RT ln Q
Solution
G = G° + RT ln Q
Where:
= Gibbs Free Energy change
= Standard Gibbs Free Energy change
= temperature
= natural log of the reaction quotient
G = G° + RT ln Q
- G° + G = -G° G° + RT ln Q ( Step -1)
(G - G°) = RTln Q
Divide both sides by RT :
(G - G°)/RT = ln Q (Step -2)
So, ln Q = (G - G°)/RT
