AQA A Level Chemistry复习笔记5.3.2 Partial Pressure
Partial Pressure The partial pressure of a gas is the pressure it exerts in a mixture of gases if it occupied the container on its own Partial pressure is given the symbol p, so for a gas X,...
AQA A Level Chemistry复习笔记5.2.8 Rate Determining Step
Rate Determining Step Rate-determining step & intermediates A chemical reaction can only go as fast as the slowest part of the reaction So, the rate-determining step is the slowest step ...
AQA A Level Chemistry复习笔记5.2.7 Rate-Concentration Graphs
Rate-Concentration Graphs Order of reaction from initial rate The progress of the reaction can be followed by measuring the initial rates of the reaction using various initial concentrations...
AQA A Level Chemistry复习笔记5.2.6 Concentration-Time Graphs
Concentration-Time Graphs Order of reaction from concentration-time graphs In a zero-order the concentration of the reactant is inversely proportional to time This means that the concentrati...
AQA A Level Chemistry复习笔记5.2.5 Finding Activation Energy
Finding Activation Energy Finding the Activation Energy Very often, the Arrhenius Equation is used to calculate the activation energy of a reaction Either a question will give sufficient inf...
AQA A Level Chemistry复习笔记5.2.4 The Arrhenius Equation
The Arrhenius Equation The rate equation shows how each of the reactants in a reaction effects the rate of the reaction and it includes the rate constant, k However, k only remains constant ...
AQA A Level Chemistry复习笔记5.2.3 Rate Equation Calculations
Rate Equation Calculations The rate constant (k) of a reaction can be calculated using the initial rates and the rate equation Calculating the rate constant from the initial rate The reactio...
AQA A Level Chemistry复习笔记5.2.2 Deriving Rate Equations
Deducing Orders Order of reaction For the general reaction A + B → C + D The order of reaction shows how the concentration of a reactant affects the rate of reaction Rate = k [A]m [B]n When ...
AQA A Level Chemistry复习笔记5.1.8 Reaction Feasibility
Reaction Feasibility The Gibbs equation can be used to calculate whether a reaction is feasible or not ΔGꝋ = ΔHreactionꝋ - TΔSsystemꝋ When ΔGꝋ is negative, the reaction is feasible and likel...
