Gibbs Free Energy
Thermodynamics of Class 11
This is another thermodynamic quantity that helps in predicting the spontaneity of a process, is called Gibbs energy (G).
It is defined mathematically by the equation.
G = H − TS
Where H = heat content
S = entropy of the system
T = absolute temperature
Free energy change
For isothermal process.
ΔG = G2 -G1 = ΔH - TΔS
ΔG = change in Gibbs free energy of the system.
It is that thermodynamic quantity of a system the decrease in whose value during a process is equal to the maximum possible useful work that can be obtained from the system.
- Introduction
- Some Basic Terms
- Isochoric Process
- Internal Energy, U
- Mathematical Expression Of First Law
- Enthalpy Of A System
- Second Law Of Thermodynamics
- Gibbs Free Energy
- Relationship Between Free Energy And Equilibrium Constant
- Third Law Of Thermodynamics
- Thermochemistry
- Hess's Law
- Lattice Energy Of An Ionic Crystal (Born–Haber Cycle)
- Bomb Calorimeter
- Heat Capacity And Specific Heat
- Variation Of Heat Of Reaction With Temperature
- Exercise 1
- Exercise 2
