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2 cards from this section. Quick, good the night before a test.
What is the initial rates method used for?
Think about how concentrations affect the speed of reactions.
What happens if a reaction is zero order with respect to a reactant?
Zero means no change.
What is the purpose of the initial rates method?
Consider what happens when you vary concentrations.
True or False: A reaction is first order with respect to a reactant if doubling its concentration quadruples the rate.
Think about the meaning of order in kinetics.
Consider a reaction where doubling the concentration of Reactant X results in a tripling of the rate. What is the order with respect to Reactant X? Justify your answer.
Think about how changes in concentration translate into changes in reaction speed.
You conducted an experiment and observed the following rates: [A] = 0.1 M, Rate = 2.0; [B] = 0.1 M, Rate = 2.0. If you modified the concentration of A to 0.2 M and the rate became 4.0, what can you say about the order concerning A?
Examine how the concentration changes influence the reaction rate.
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