CHEM 1110 Lecture Notes - Lecture 18: Collision Theory, Activation Energy, Potential Energy
24 Mar 2017
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Transition state: intermediate molecular species formed during the collision of reacting molecules in a chemical change. Activation energy (ea): the minimum kinetic energy needed to produce an effective collision. Catalyst: substance that increases the rate of a reaction by lowering the activation energy without participating chemically (remains unchanged) Le chatelier"s principle: if a system at equilibrium is subjected to a change, processes occur that tend to partially counteract the initial change, thereby bringing the system to a new position of equilibrium. More hi is added to the system: The system responds by shifting in the reverse direction: The expression for k will only depend on the concentrations of substances in the gas or aqueous phases.
