Entropy change (ΔS)

Definition

Entropy change (ΔS) is the measure of disorder or randomness in a system that occurs during a chemical reaction in organic chemistry. It quantifies how the distribution of energy among particles changes as a reaction progresses toward equilibrium.

Related terms

Gibbs Free Energy (ΔG): The difference between the enthalpy and the product of the entropy and temperature of the system, indicating if a process will occur spontaneously.

Reaction Equilibrium: A state in which the forward and reverse reaction rates are equal, leading to no net change in the concentration of reactants and products over time.

Activation Energy (Ea): The minimum amount of energy required to initiate a chemical reaction, influencing both the rate and directionality of reactions