### Gibbs = 0

Posted:

**Mon Feb 12, 2018 1:53 am**When is Gibbs free energy equal to zero?

For this question:

The entropy of vap of water is 109.0J/mol*K. What is the enthalpy of vap of water at its normal boiling point of 100 degree C?

Why do we set G equal to zero?

For this question:

The entropy of vap of water is 109.0J/mol*K. What is the enthalpy of vap of water at its normal boiling point of 100 degree C?

Why do we set G equal to zero?