CHEM 1110 Lecture Notes - Lecture 11: Gibbs Free Energy, Inert Gas, Reaction Coordinate
4 Apr 2017
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Document Summary
Every reaction has a unique position of equilibrium. Equil: concentrations of reactants and products remain constnat. Conditions change: concentrations of all chemicals with change until equil is restored. Equil constant is the same unless temp changes. Sysem at equil is disturbed, position of equil will shift to minimize the disturbance. Add inert gas (argon) to reaction mixture. Add inert gas increases pressure of container, but doesnt change partial pressure of gases. Add inert gas has no effect on k eq. Decrease the volume of container increases the concentration of all gases in the container. Increases partial pressure: p =n/v rt: molar concentrations increase. Right handed side: remains constant if increase in pb^2 is cancelled by an increase in square of pa. Required steep increase in pa occurs if composition of system shifts in favor of a at expense of b. Reaction shifts right to side with fewer gas particles. Reaction shifts left to side with more moles of gas.
