'Experimentally determined rate law' presentation slideshows

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CHEMICAL KINETICS CHAPTER 13

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Kinetics and Mechanism

Kinetics and Mechanism. 16.2 Reaction mechanism. 16.2.1 Explain that reactions can occur by more than one step and that the slowest step determines the rate of the reaction (rate-determining step)

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Chemical Kinetics

Chemical Kinetics. The area of chemistry that concerns reaction rates and reaction mechanisms. Reaction Rate. The change in concentration of a reactant or product per unit of time. 2NO 2 (g) ? 2NO(g) + O 2 (g). Reaction Rates:. 1. Can measure disappearance of reactants.

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Chemical Kinetics

Chemical Kinetics. The area of chemistry that concerns reaction rates and reaction mechanisms. Reaction Rate. The change in concentration of a reactant or product per unit of time. 2NO 2 (g) ? 2NO(g) + O 2 (g). Reaction Rates:. 1. Can measure disappearance of reactants.

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Chemical Kinetics

Chemical Kinetics. The Rate of Reaction. Chemical kinetics is concerned with the rate at which chemical reactions take place The rate of reaction is the change in concentration of a reactant or a product over time (in M/s). The Rate of Reaction. For the reaction A ? B

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Chapter 12 – Chemical Kinetics

Chapter 12 – Chemical Kinetics. Second order Rate Law Zero Order Rate Law Reaction Mechanism Model for Chemical Kinetics Collision Catalysis Heterogeneous Catalysis Homogeneous Catalysis. Second-Order Rate Law. For a A  products in a second-order reaction, Integrated rate law is

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CHEMICAL KINETICS

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Reaction Mechanisms

Reaction Mechanisms. Rxn Mechanism. The series of steps that chemical reactions occur by main points of kinetics is to learn these steps. NO 2(g) +CO (g) -->NO (g) +CO 2(g). Rate = k[NO 2 ] 2 Tells us about reactants and products and stoichiometry, but nothing about mechanism.

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Understanding reaction mechanisms (an analogy)

Describes in great detail the order in which bonds are broken and formed and the changes in relative position of the atoms during the course of reaction. Understanding reaction mechanisms (an analogy).

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Chemical Kinetics

Chemical Kinetics. Reaction rate - the change in concentration of reactant or product per unit time. Factors Affecting Rates. Temperature Concentration of reactants Particle size Presence of a catalyst. Rates.

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Chemical Kinetics

Chemical Kinetics. The area of chemistry that concerns reaction rates and reaction mechanisms. Reaction Mechanism. The reaction mechanism is the series of elementary steps by which a chemical reaction occurs.

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Kinetics Lesson # 4

Kinetics Lesson # 4. Reaction Mechanisms. Reaction Mechanism. Most chemical reactions do not happen in one step. A balanced equation shows us beginning and end only, but none of the intermediate-steps along the way. We need to know the reaction mechanism to determine all of these steps.

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