Rates and Equilibrium Flashcards
Activation Energy
Minimum amount of energy required for a reaction to take place.
Rate of Reaction
The change in concentration of a reactant or product per unit time
Temperature
A measure of kinetic energy of the particles of a substance
Catalyst
A substance which speeds up the rate of reaction by lowering the activation energy, remaining unchanged by the reaction
Average Rate of Reaction
The change in concentration of a reactant or product per unit time, as measured over a certain time period.
Formulae to calculate average rate of reaction
(change in quantity) / (change in time)
Maxwell-Boltzmann Distribution
A graph showing the distribution of energy across a sample of particles
Reversible Reaction
A chemical reaction that can occur in either the forward or reverse direction, given appropriate conditions
Closed System
A system in which no substances can escape or be added
Dynamic Equilibrium
A situation in which the rate of the forward and reverse reactions are equal, resulting in no observable change over time.
Yield
The amount of product produced
Position of equilibrium
An evaluation of the relative amount of products compared to reactants.
At equilibrium, if more products are present, equilibrium is said to be on the…
Right
At equilibrium, if more reactants are present, equilibrium is said to be on the…
Left
Le Chatelier’s Principle
A system at equilibrium has a tendency to partially oppose a disruption
