Chemistry: Reaction Kinetics Graph Identification

Rate equation for zero order reactions

rate = [A]^0

Units of k in rate eqn for zero order eqns

mol dm³ s^-1

Effect of zero order reactions on concentration of reactants

When [A] doubles, the reaction rate remains unchanged (rate independent of [A])

graph of rate against [reactant] for zero order reactions

graph of [reactant] against time for zero order reactions

graph of [product] against time for zero order reactions

Rate equation for first order reactions

k[A]^1

Units of k in first order rate equation

s^-1

Effect of first order reactions on concentration of reactants

When [A] double, reaction rate also doubles ([A] directly proportional to rate)

graph of rate against [reactant] for first order reactions

graph of [reactant] against time for first order reactions

graph of [product] against time for first order reactions

Rate equation for second order reactions

k[A]²

Units of k in rate equation of second order reactions

mol^-1 dm³ s^-1

Effect of second order on concentration of reactants

When [A] doubles, the reaction rate increases by 4 times (rate increases to the square of [A])

graph of rate against [reactant]

graph of [reactant] against time