Kinetics 0.0 / 5 ? ChemistryRatesA2/A-levelAQA Created by: Holly PeelCreated on: 05-11-14 09:26 Rate equation? r=k[A]^x[B]^y 1 of 10 How do you work out the overall order of a reaction? Add all the powers together 2 of 10 What is the rate of a reaction? The change in concentration of reactants per unit time. 3 of 10 What happens when a reactant is 1st order? the change in the rate is the same as the change in concentration 4 of 10 What happens when a reactant is 2nd order? the change in the rate is the change in concentration squared 5 of 10 What happens when a reactant is 0 order? the change in concentration has no effect on the rate change 6 of 10 Which step is the rate determining step? the slowest step in a chemical reaction 7 of 10 When there is an increase in temperature.. ..k increases. 8 of 10 When there is a decrease in temperature.. ..k decreases. 9 of 10 If the concentration or pressure is changed at a constant temperature.. ..k will not change. 10 of 10
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