Chapter 2. Gibbs Free energy
GIBBS FREE ENERGY: Energy useful to produce work. Free energy that can be used.
SPONTANEITY: A process that occurs naturally given the necessary time, defined by the Gibbs free energy.
ENTROPY: Measures the disorder of a process. It is a state function.
At constant Temperature and Pressure:
∆G = ∆H - T∆S
If ∆G < 0 spontaneous process
If ∆G = 0 process in equilibrium If ∆G > 0 nonspontaneous |
If ∆S > 0: increase in disorder
If ∆S < 0: decrease in disorder |
Andersen, P. "Using Gibbs Free Energy". Bozeman Science. 2014
Excersise
See more examples
References:
Almanza, Y. Equilibrium Thermodynamics. ITESM CEM. México. 2016.
Vogel, E. Principles of chemical science. MIT. USA. 2008
http://ocw.mit.edu/courses/chemistry/5-111-principles-of-chemical-science-fall-2008/readings-and-lecture-notes/
Almanza, Y. Equilibrium Thermodynamics. ITESM CEM. México. 2016.
Vogel, E. Principles of chemical science. MIT. USA. 2008
http://ocw.mit.edu/courses/chemistry/5-111-principles-of-chemical-science-fall-2008/readings-and-lecture-notes/