Chem 104 1st Edition Lecture 23 Outline of Last Lecture I. Kineticsa. Rate lawi. Remartson rate lawii. Reaction orderiii. Finding the rate law1. Zero orderiv. Proving through algebraOutline of Current LectureI. Goals of rate lawII. Rate by rate lawa. Initial rate methodIII. Determining rate law with multiple reactantsCurrent LectureI. The goals of rate law is to measure:1. Time2. Concentration of reactants at a given time3. Control kineticsb. This way an experiment can be repeated, controlled, and discussed with accuracyII. Rate lawa. The rate by rate law is a represented through the equation:B ¿mA ¿n∗¿rate law=k ¿Remember that n and m must come from experimental data.b. The initial rate method is represented by:A ¿nrate= k ¿To solve for the n between two experiments, divide them by each otherIII. When there are multiple reactants with an effect, this results in changing the overall rate of the reaction.Example: Rate = k[NO2]n[CO]m. determine the rate law and k. (this chart was taken directly from the slides)Solve for n then m..10¿m¿.10¿m¿.10 ¿n∗¿k ¿.20 ¿n∗¿k ¿rate2rate1=¿.20.10¿n=.0021.0082¿2n=4=n=2.20 ¿n¿.20 ¿n¿.10 ¿m∗¿k ¿.20 ¿m∗¿k
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