1. EEE-How Fast

Question 0

Order of reaction

Answer 0

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

Question 1

Rate of reaction

Answer 1

​Rate of change of concentration of reactants or products (units are mol dm-3 s-1)

Question 2

Rate constant, k

Answer 2

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

Question 3

Half-life

Answer 3

The time taken for the concentration of a reactant to reduce by half

Question 4

Rate-determining step

Answer 4

The slowest step in the reaction mechanism of a multi-step reaction

Question 5

• how would you find the rate of reaction from a concentration/time graph

Answer 5

Draw a tangent to the curve at the required time and measure the gradient of the tangent

Question 6

• initial rate of reaction

Answer 6

Rate of reaction (previous definition) when t=0

Question 7

• half life of first order reaction

Answer 7

Independent of concentration

Question 8

• how would you know if a reaction is single or multi-step?

Answer 8

The order of reactants in the rate equation would (match/not match) the stoichiometry of the reactants in the balanced chemical equation