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GCSE Chemistry · key term
How quickly reactants are used up or products are formed.
Used by AQA, Edexcel and OCR
Specification 4.6.1.1, 4.6.1.2 · Paper 1, Paper 2
How quickly a reactant is used or a product is formed, expressed as a change in quantity per unit time.
How quickly a reactant is used up or a product is formed in a chemical reaction.
Specification 4.16, 5.15C, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 · Paper 1, Paper 2
How quickly reactants are converted into products.
The speed at which reactants are converted into products.
The amount of reactant used up or product formed per unit time.
The speed at which reactants are used up or products are formed.
The change in the amount of a reactant used up or a product formed per unit time.
How quickly reactants are used up or products are formed in a chemical reaction.
The change in the amount of reactant used or product formed per unit time.
Specification C2.3h, C5.1k, CM5.2i, CM5.2ii, CM5.2iv, C5.2a, C5.2b, C5.2c, C5.2d, C5.2e, C5.2f, C5.2g, CM5.3i, CM5.3ii, CM5.3iii, CM5.3iv, C5.3b, CM6.1i, CM6.1ii, CM6.1iii, CM6.1iv, C6.1e, C6.1f, PAG 8 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A measure of how quickly reactants are converted into products.
Revise: Surface Area to Volume RatioIf more successful collisions happen each second, the rate of reaction is greater. This is why the same mass of calcium carbonate powder reacts with hydrochloric acid faster than calcium carbonate granules or chips.
How quickly reactants are used or products are formed.
A measure of how quickly reactants are used up or products are formed in a chemical reaction.
How quickly a reactant is used up or a product is formed.
A measure of how quickly a reactant is used up or a product is formed.
The amount of reactant used up or product formed per unit time.
How quickly reactants are used up or products are formed in a chemical reaction.
The amount of reactant used up or product formed in a given time.
How quickly reactants are used up or products are formed, expressed as a change in quantity per unit time.
How quickly reactants are used up or products are formed, measured as a change in quantity per unit time.
The change in the amount of reactant used or product formed per unit time.
How quickly reactants are used up or products are formed, measured as a change in amount divided by time.
The change in the amount of a reactant used or product formed per unit time.
How quickly a reactant is used up or a product is formed, expressed as change in amount divided by time.
The amount of product formed per unit time, or the speed at which reactants are used up.
The change in the amount of a reactant used up or product formed per unit time.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
How quickly reactants are used up or products are formed in a chemical reaction.
Revise: Factors affecting rateThe rate of reaction describes how quickly reactants are used up or products are formed. A higher rate means that the same change happens in less time.
How quickly a reactant is used up or a product is formed.
How quickly a reactant is used up or a product is formed, expressed as a change in quantity per unit time.
The amount of reactant used up or product made per unit time.
How quickly a reactant is used up or a product is formed, measured as a change in quantity per unit time.
How quickly a measured quantity of reactant is used up or product is formed.
How quickly reactants are converted into products.
How quickly reactants are used up or products are formed during a chemical reaction.
State the direction of change explicitly: for example, “increasing the temperature increases the rate of reaction”.
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