CHEM 1A Study Guide - Midterm Guide: Gibbs Free Energy, Benzene
Document Summary
= os - allows calculations from system alone. G = h - ts: a measure of the change in the total energy of a system and its surroundings at constant t and p. The energy of a system that is free to do work at constant temp . and pressure. Direction of spontaneous change at constant t and p is the direction of decreasing g. D g = oh -tos at constant t and p. = - os (cid:15482) of = - tos total increase in total entropy os toea, corresponds to decrease in gibbs free energy og. T vapor stable lower t : gm of solid phase lies lowest so liquid freezes: at higher t : gm of vapor falls below solid , : ddffeennddssjnhfhm. at way to become most stable so melts. D g = h { gm ( products, G under standard conditions does not change as reaction proceeds standard : pure form at.
