Unit Award Scheme

122540 RATE OF CHEMICAL REACTION

In successfully completing this unit, the Learner will have		Evidence needed
demonstrated the ability to
1	perform two calculations of the rate of a chemical reaction over time, using the quantity of the reactant use, and the quantity of the product formed	Summary sheet and/or student completed work
2	draw two graphs to show the quantity of the product formed and the quantity of the reactant used against time	Summary sheet and/or student completed work
3	interpret the graphs showing the quantity of the product formed against time and the quantity of the reactant used against time	Summary sheet and/or student completed work
shown knowledge of
4	the tangent to a graph being a measure of the rate of reaction	Summary sheet and/or student completed work
5	the key factors that affect the rate of a chemical reaction, including the concentration, pressure, surface area, temperature and presence of catalysts	Summary sheet and/or student completed work
experienced
6	observing how changes in concentration affect the rates of reactions in two experiments, using a method involving measuring the gas produced, and using a change in the colour or turbidity	Summary sheet and/or student completed work
demonstrated the ability to
7	use collision theory to explain changes in the rate of reaction and discuss activation energy	Summary sheet and/or student completed work
8	describe the role of a catalyst in a chemical reaction and state that enzymes are catalysts in biological systems	Summary sheet and/or student completed work
9	draw and interpret the reaction profiles for given catalysed reactions	Summary sheet and/or student completed work
10	define and give two examples of reversible reactions using the symbol '↔'	Summary sheet and/or student completed work
shown knowledge of
11	how the direction of reversible reactions can be changed by representing it using the symbols and sequence of 'A + B ↔ C + D'	Summary sheet and/or student completed work
demonstrated the ability to
12	explain that, for reversible reactions, if a reaction is endothermic in one direction, it is exothermic in the other direction	Summary sheet and/or student completed work
13	define the state of 'dynamic equilibrium' of a reaction as being the point when the forward and reverse reactions occur at exactly the same rate.	Summary sheet and/or student completed work

All outcomes recorded on an AQA Summary Sheet

Approved 22 November 2024Level - Level One