Factors affecting rates of reaction 0.0 / 5 ? ChemistryRate of reactionGCSEAQA Created by: CMcNicholas1Created on: 11-06-18 13:52 Factors Catalyst, Temperature, Surface Area and Concentration/Pressure 1 of 5 Catalyst Speeds up a reaction without being used up. It decreases the activation energy so more particles have enough energy to react. 2 of 5 Temperature Increased temperature means particles move faster which means more collisions and particles collide with more energy. 3 of 5 Surface Area A larger surface area to volume ratio speeds up a reaction as there is a larger area for particles to collide with. 4 of 5 Concentration/Pressure A more concentrated solution has more particles and a gas at a higher pressure has more particles in a given volume which equals more collisions 5 of 5
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