AQA A Level Chemistry复习笔记1.9.3 Redox Equations
Balancing Redox Reactions Balancing equations using redox principles is a useful skill and is best illustrated by following an example It is important to follow a methodical step-by-step app...
AQA A Level Chemistry复习笔记1.9.2 Oxidation States: The Rules
Oxidation States Oxidation State Rules A few simple rules help guide you through the process of determining the oxidation state of any element Remember, you are determining the oxidation sta...
AQA A Level Chemistry复习笔记1.8.5 Changes Which Affect the Equilibrium
Changes Affecting the Equilibrium Constant Changes in concentration If all other conditions stay the same, the equilibrium constant Kc is not affected by any changes in concentration of the ...
AQA A Level Chemistry复习笔记1.8.4 Calculations Involving the Equilibrium Constant
Kc Calculations Calculations involving Kc In the equilibrium expression each figure within a square bracket represents the concentration in mol dm-3 The units of Kc therefore depend on the f...
AQA A Level Chemistry复习笔记1.8.3 The Equilibrium Constant, Kc
The Equilibrium Constant, Kc Equilibrium expression & constant The equilibrium expression links the equilibrium constant, Kc, to the concentrations of reactants and products at equilibri...
AQA A Level Chemistry复习笔记1.8.2 Le Chatelier's principle
Le Chatelier's Principle Position of the equilibrium The position of the equilibrium refers to the relative amounts of products and reactants in an equilibrium mixture When the position of e...
AQA A Level Chemistry复习笔记1.7.6 Catalysts
Maxwell-Boltzmann Distribution Curve - Catalyst Catalysis is the process in which the rate of a chemical reaction is increased, by adding a catalyst A catalyst increases the rate of a reacti...
AQA A Level Chemistry复习笔记1.7.5 Effect of Concentration & Pressure
Concentration, Pressure & Rate of Reaction Concentration The more concentrated a solution is, the greater the number of particles in a given volume of solvent An increase in concentratio...
AQA A Level Chemistry复习笔记1.7.4 Effect of Temperature on Reaction Rate
Temperature & Rate of Reaction Temperature & Rate of Reaction Increasing the temperature of the reaction mixture increases the rate of reaction in the following two ways: At higher t...
AQA A Level Chemistry复习笔记1.7.3 Maxwell–Boltzmann Distributions
Maxwell-Boltzmann Distribution Curve - Temperature Maxwell-Boltzmann distribution curve A Maxwell-Boltzmann distribution curve is a graph that shows the distribution of energies at a certain...
AQA A Level Chemistry复习笔记1.7.2 Measuring Rates of Reaction
Measuring the Rate of a Reaction Reaction rate The rate of reaction is the speed at which a chemical reaction takes place and has units mol dm-3 s-1 or mol dm-3 min-1 The rate of a reaction ...
AQA A Level Chemistry复习笔记1.6.7 Bond Enthalpies
Bond Enthalpies The amount of energy required to break one mole of a specific covalent bond in the gas phase is called the bond dissociation energy Bond dissociation energy (E) is usually ju...
