# Rates & Equilibrium A2 OCR Chemistry A Revision Notes

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- Created on: 11-03-13 17:55

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Rates & Equilibrium

The Rate Equation

Definitions

Order of Reaction

Concentration-Time Graphs

Shapes of Graphs

Determining the Order Using Concentration-Time Graphs

Rate-Concentration Graphs

Shapes of Graphs

Determining the Order Using The Initial Rate Method

The Rate Constant

Calculation and Units

The Effect of Temperature on k

The Rate Determining Step

Reactions Involving Different Molar Quantities

Equilibrium

The Equilibrium Constant Kc

The Units of Kc

The Effect of Changing Conditions on Kc

The Effect of Changing Concentration on Kc

The Effect of Changing Pressure on Kc

The Effect of A Catalyst on Kc

The Effect of Changing Temperature on Kc

Calculations Involving Kc

Kc From Equilibrium Constants

Kc From Initial Amounts

The Composition of a Reaction Mixture

Calculating the Amount of a Reactant Needed

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