5.1.1 How Fast?

Question 1

explain and use the terms: rate of reaction, order, rate constant, half-life, ratedetermining step

Question 2

deduce, from a concentration–time graph, the rate of a reaction and the half-life of a first order reaction

Question 3

state that the half-life of a first-order reaction is independent of the concentration

Question 4

deduce, from a rate–concentration graph, the

order (0, 1 or 2) with respect to a reactant

Question 5

determine, using the initial rates method, the

order (0, 1 or 2) with respect to a reactant;

Question 6

deduce, from orders, a rate equation of the

form: rate = k[A]m[B]n, for which m and n are

0, 1 or 2;

Question 7

calculate the rate constant, k, from a rate

equation;

Question 8

explain qualitatively the effect of temperature

change on a rate constant and hence the rate

of a reaction;

Question 9

for rate mechanism propose a rate equation that is

consistent with the rate-determining

step,

Question 10

propose steps in a reaction mechanism

from the rate equation and the

balanced equation for the overall

reaction.