CHEM 1A Lecture Notes - Lecture 28: Vapor Pressure, Reaction Quotient, Equilibrium Constant

• School: Berkeley
• Department: Chemistry
• Course: CHEM 1A
• Professor: Arnold John

Document Summary

The magnitude of negaive g expresses the driving force of a reacion to proceed towards products. As the reacion progresses, g becomes less and less negaive and reaches zero when the reacion reaches the state of equilibrium. If the selected iniial condiions yield g > 0, everything works the same except the reacion proceeds in the reverse direcion from products towards reactants unil it reaches the state of equilibrium. In all these cases, g can be related to the reacion quoient, q: Since at equilibrium g = 0 and q = k, it is easy to show that. G = --rt ln k. note that g and k are directly related to each other. Reacions with a negaive value for g have large values of k; those with posiive values of g have values for k smaller than 1. The general relaionship between delta g values of reacion and the k constant is that.