Gibb's Energy Change for Spontaneous and Non-spontaneous Processes Gibb's energy change is a thermodynamic property that describes the spontaneity of a chem...
Gibb's Energy Change for Spontaneous and Non-spontaneous Processes
Gibb's energy change is a thermodynamic property that describes the spontaneity of a chemical reaction. A spontaneous reaction proceeds in a forward direction naturally, without the need for external energy input. The equilibrium constant for a spontaneous reaction is always greater than 1.
The change in Gibbs free energy (ΔG) for a spontaneous reaction is equal to the product of the changes in enthalpy (ΔH) and entropy (ΔS).
where T is the temperature in Kelvin.
For a non-spontaneous reaction, the Gibbs free energy change is equal to the negative of the product of the changes in enthalpy and entropy.
The sign of the Gibbs free energy change helps determine the spontaneity of a reaction. A positive ΔG indicates a non-spontaneous reaction, while a negative ΔG indicates a spontaneous reaction.
Gibb's energy change is a fundamental property in chemical thermodynamics and is used to predict the direction of spontaneous and non-spontaneous chemical reactions under different conditions