KineticsReview_for_Quiz1

KineticsReview_for_Quiz1 - are plotted a[reactant vs time...

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Review: Kinetics – Quiz 1 The minimum you need to know! 1) Rate expression: Rate = k[A] 2 [B] 1 a) What is k? Define it. What does [ ] mean? b) What is the order of reaction: for A for B overall? c) What are the units for reaction rate, (assume solutions always unless otherwise stated)? d) What happens to the rate if [A] is: Halved Tripled e) What happens to the rate if [B] is: Halved Tripled f) Can the rate equation always be deduced form the stoichiometric chemical equation? How then? 2) Units of rate constant for: Zero order reactions First order reactions Second Order? 3) What is the order of reaction, with respect to reactant, if data points are linear, if the following
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Unformatted text preview: are plotted: a) [reactant] vs time ln [reactant]vs 1/[reactant] vs time b) If [reactant] has no effect on rate, what is the order of reaction with respect to [reactant]? 3) What is the full rate expression? Experiment [S 2 O 8 2-] (M) [I-] (M) Initial rate (M/s) 1 0.018 0.036 2.6 x10 -6 2 0.027 0.036 3.9 x10 -6 3 0.036 0.054 7.8 x10 -6 4 0.050 0.072 1.4 x10 -5 4) Define half-life. What is the half-life of a first order reaction with k = 6.93 /s? How else can you work out half-life? 5) Give the Arrhenius equation. Sketch the graph to be plotted in order to measure E a and A? How else can Ea be measured?...
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This note was uploaded on 01/09/2011 for the course SCIENCE 12084 taught by Professor Mrdavidbyrum during the Spring '10 term at Harrison College.

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