## Vaporization of Water

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

MCracchiolo 1C
Posts: 55
Joined: Sat Jul 22, 2017 3:00 am

### Vaporization of Water

Why is the Gibbs Free Energy at 100 (degrees C) for the vaporization of water, zero?

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

### Re: Vaporization of Water

Hi! I think the Gibbs free energy is zero because the system is at equilibrium. The rate of reaction for liquid water turning into a gas is the same as the rate of reaction for gas turning into a liquid.