1. 23. Energetics 2 + Kinetics 1Key concepts covered on Energetics 2: 1. Entropy, a measure of disorder in a system and factors (temperature, phase change, change in amount after reaction and mixing) affecting entropy. 2. Formula to link Gibbs Free Energy, enthalpy change and entropy change. 3. Predicting the spontaneity of reaction using delta G. 4. Impact of temperature on delta G, checking if delta H or delta S is the more significant factor. Key concepts covered on Kinetics: 1. Difference between energetic feasibility and kinetic feasibility of a reaction. 2. Measurement of rate of reaction by change in [reactant] or [product] per unit time. Rate can be obtained from gradient of a concentration-time graph. 3. Rate equation, rate constant, k which is affected by temperature and activation energy and order of reaction. 4. Characteristic of zero, first and second order reaction focusing on the concentration-time and rate-concentration graphs.