rates of reaction topic test 0.0 / 5 ? ChemistryRate of reactionGCSENone Created by: natJratCreated on: 21-09-14 19:51 how can you measure the rate of a reaction? the rate a reactant is used up, or the rate a product is made 1 of 13 what effects the rate of a reaction? temperature, concentration pressure of gasses, surface area of reacting solids, catalsyt 2 of 13 when can chemical reactions occur? when particles collide with enough energy 3 of 13 what does a low rate of reaction suggest? the reaction is slow 4 of 13 what does a fast reaction have? a high reaction rate 5 of 13 what should be measured when working out the ROR? the volume of gas, the mass of substance 6 of 13 formula for rate of reaction... amount of reactant used/amount of product formed,divided by time taken 7 of 13 what happens when the temperature is increased? the ROR speeds up 8 of 13 what happens when the concentration of a reactant is decreased? the ROR is decreased 9 of 13 what do you do to the pressure to increase ROR? increase it 10 of 13 soild reactants can be ........ to increase ROR broken up 11 of 13 what does a catalyst do? speeds up a reaction-ROR increases 12 of 13 what does activation energy mean? the minimum amount of energy particles need to collide 13 of 13
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