Gibbs free energy determines whether a reaction is spontaneous from "summary" of Chemistry by Russell Kuhtz
The Gibbs free energy is a crucial concept in determining whether a reaction is spontaneous or not. When we talk about spontaneity in chemistry, we are referring to whether a reaction will occur without any external influence. In other words, will the reaction happen on its own without needing any extra push?To understand this concept, we need to look at the equation for Gibbs free energy, which is ΔG = ΔH - TΔS. In this equation, ΔG represents the change in Gibbs free energy, ΔH is the change in enthalpy, T is the temperature in Kelvin, and ΔS is the change in entropy. If the change in Gibbs free energy (ΔG) for a reaction is negative, it means that the reaction is spontaneous. This is because a negative ΔG indicates that the products of the reaction are in a lower energy state than the reactants. In simpler terms, the reaction will naturally move towards the products because they are more stable. Conversely, if the change in Gibbs free energy (ΔG) for a ...
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