Chemistry Paper 2: Topic 7 - Reaction Rate 0.0 / 5 ? ChemistryRate of reactionGCSEEdexcel Created by: JS13Created on: 24-02-22 18:40 What equation can reaction rate be expressed as? Amount of reactant used up or product formed / time 1 of 6 What units can reaction rate be written with? g / s cm^3 / s mol / s 2 of 6 What equipment can be used to find out the reaction rate involving a gas being produced? Measure volume of gas: using either a gas syringe or upturned measuring cylinder in a trough of water Measure time: stopwatch, stop clock etc. 3 of 6 What equipment can be used to find out the reaction rate involving a precipitate being produced? Have one of the reactants in a beaker on top of a black cross drawn on a piece of paper. Pour the second reactant Time how long it takes for the cross to disappear 4 of 6 What does the term 'activation energy' mean? The minimum energy required for a reaction to take place between two reactant particles 5 of 6 What factors can increase reaction rate? 1) Increase in temperature 2) Increase in concentration of reactants 3) Adding a catalyst 4) Increase in SA:V ratio *5) Increase in pressure *GASES ONLY* 6 of 6
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