We introduce entropy and the Second Law of Thermodynamics, stating that entropy of a closed system never decreases. Entropy measures energy dispersion; it increases as systems move toward equilibrium....We introduce entropy and the Second Law of Thermodynamics, stating that entropy of a closed system never decreases. Entropy measures energy dispersion; it increases as systems move toward equilibrium. Heat transfer changes entropy, visualized in TS diagrams, where the area under the curve represents heat. Statistically, entropy links to the number of microstates, favoring the most probable macrostates, explaining why systems evolve toward higher entropy.
