Some examples from this set of practice questions
1.
what is a zero order reaction ?
Answer: the concentration does not influence the rate
2.
what is a first order reaction ?
Answer: the initial rate is directly proportional to the concentration of the reactant when the concentration doubles, the rate also doubles
3.
what is a second order reaction ?
Answer: the initial rate is directly proportional to the square of the concentration of the reactant. when the concentration doubles, the rate quadruples.
4.
what is the half life of a reaction?
Answer: the time taken for half of the reactant to be used up
5.
where can a cpnstant half life be found?
Answer: in a first order reaction only
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