'Overall rate law' diaporamas de présentation

Chemical Kinetics Part 3: Reaction Mechanisms

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Chem 1310: Introduction to physical chemistry Part 2: Chemical Kinetics

Chem 1310: Introduction to physical chemistry Part 2: Chemical Kinetics. Exercises. From concentrations to rates and rate laws. 2 H 2 O 2 ? 2 H 2 O + O 2. From concentrations to rates and rate laws. From concentrations to rates and rate laws. k = slope.

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Chemical Kinetics

Chemical Kinetics. Phenolphthalein reacting with OH - ion. Rate of reaction = ? X / ? t . X = Concentration of Phenolphthalein (M) Time (s) 0.0050 0.0 0.0045 10.5 0.0040 22.3 0.0035 35.7 0.0030 51.1 0.0025 69.3 0.0020 91.6 0.0015 120.4

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Reaction Mechanisms

Reaction Mechanisms. Steps of Reactions using Rate Laws. What is a mechanism?. A reaction mechanism is a description of the path, or sequence of steps , by which a reaction occurs. . START. END. REACTION MECHANISM. START. END. Example: Decomposition of O 3.

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Reaction Mechanisms

Reaction Mechanisms. Reaction Mechanism. Reactions occur by a series of steps = Reaction mechanism Example: Overall reaction: NO 2 + CO ? NO + CO 2 occurs by following steps Step 1: Step 2:. Intermediates. Two molecules of NO 2 collide

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Reaction Mechanisms : Reaction is broken into steps with intermediates being formed.

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