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Chapt. 15: Chemical Kinetics by Mind Map: Chapt. 15: Chemical Kinetics
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Chapt. 15: Chemical Kinetics

Reaction Rates


Rate Laws: A Summary

Rate Laws: An Introduction

Reaction Mechanisms

A Model for Chemical Kinetics

Determining the Form of the Rate Law

The Steady-State Approximation

The Integrated Rate Law

Rate=Change in Concentration/Time interval

Thermo: IF Kinetics: WHEN & HOW

Avoid complex kinetics by measuring initial rates

Rate Law: Rate=k[R]^n k & n must be determined experimentally

The rate law can provide information about the elementary steps of a reaction

Order=Sum of Exponents of Rate Law

1st order half-life is independent of time or reactant concentration, 2nd order is not

Pseudo-first-order: make one reactant in a multireactant rxn rate-limiting

To test a proposed mechanism, compare the rate law of its slowest step with the experimentally determined rate law

Key Terms: elementary step, intermediate, molecularity & rate determining step

Reaction mechanisms can't be proven

At equilibrium: Keq=kforward/kreverse

Steady state: Rate of I production = Rate of I consumption


Reaction Energy Diagram

Catalysts create a new reaction pathway with a lower activation energy