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MCAT Gen. Chem Ch. 6
| Term | Definition |
|---|---|
| Reversible Reactions Eventually: | Reach a state in which energy is minimized and entropy is maximized. |
| Chemical Equilibria Are: | Dynamic, meaning that the reactions are still occurring just at a constant rate |
| If Q < Keq: | Delta G < 0, and the reaction proceeds in the forward direction |
| If Q = Keq: | Delta G = 0, and the reaction is in dynamic equilibrium. |
| If Q > Keq | Delta G > 0, and the reaction proceeds in the reverse direction. |
| Le Chatelier's Principle | States that when a chemical system experiences a stress, it will react so as to restore equilibrium |
| Three Main Stresses Applied To A System Include: | Changes in conc, pressure and volume, and temp. |
| Increasing Conc Of Reactants / Decreasing Conc Of Products Will: | Shifts the reaction to the right |
| Increasing Pressure On A Gaseous System (Decreasing Its Volume) Will: | Shift the reaction toward the side with fewer moles of gas. |
| Increasing Temp. Of An Endothermic Reaction / Decreasing Temp Of Exothermic Reaction Will: | Shift the reaction to the right |
| Kinetic Products Are: | Higher in free energy than thermodynamic products and can form at lower temperatures. They are also called "fast products" |
| Thermodynamic Products Are: | Lower in free energy than kinetic products and are more stable. The thermodynamic pathway is more spontaneous (more negative Delta G) |
| Eq. 6.1: Equilibrium Constant | Keq = [C]^c * [D] ^d / [A] ^ a * [B] ^ b. small c = reaction coefficients. |
| Eq. 6.2: Reaction Quotient | Qc = [C]^c * [D] ^d / [A] ^ a * [B] ^ b. small c = reaction coefficients. |
Created by:
SamB91
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