BIOC 2300 Lecture Notes - Tim Barrel, X-Ray Crystallography, Molecular Evolution
27 Jan 2014
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Document Summary
State functions defined by the difference between the start and the end of the process, not by what"s in the middle. You can"t make it or destroy it, can only change it. Second law intrinsic tendency towards creating disorder drives many reactions. Release of energy is spontaneous and increases disorder. System and surroundings can make a unit instead of a universe. Delta g is the measure of spontaneity of a process. Negative means it"s a reaction that releases energy into the system, therefore is spontaneous. The reaction is therefore not spontaneous and will not happen on its own. Reaction needs tweaking to make the reaction go. When delta g = 0 it means the reaction is in equilibrium! Means that there is an equal rate of change of the reaction in each direction. Rearrange the equation for delta g so that delta g equals 0.
