Chemistry F325 Definitions

Front 1

Rate of reaction

Back 1

is the change in concentration of a reactant or product per unit time

Front 2

Initial rate of reaction

Back 2

is the change in concentration of a reactant, or product, per unit time at the start of the reaction when t=0

Front 3

The rate equation

Back 3

for a reaction A + B -> C is given by:

rate = k[A]^m [B]^n

where m is the order of the reaction with respect to A, and n is the order of the reaction with respect to B

Front 4

The order with respect to a reactant

Back 4

is the power to which the concentration of the reactant is raised to in the rate equation

Front 5

The overall order of a reaction

Back 5

is the sum of the individual orders, m+n

Front 6

The rate constant, k

Back 6

is the constant that links the rate of reaction with the concentrations of the reactants raised to the powers of their orders in the rate equation

Front 7

The half-life of a reactant

Back 7

is the time taken for the concentration of the reactant to reduce by half