CIE A Level Chemistry复习笔记5.3.1 Electrolysis
Products of Electrolysis Electrolysis is the breaking down of a compound into its elements using an electric current For example, the electrolysis of zinc chloride (ZnCl2) into its elements zinc an...
CIE A Level Chemistry复习笔记5.2.5 Reaction Feasibility: Temperature Changes
Feasibility & Temperature Changes The feasibility of a reaction can be affected by the temperature The Gibbs equation will be used to explain what will affect the feasibility of a reaction for ...
CIE A Level Chemistry复习笔记5.2.4 Reaction Feasibility
The Gibbs Equation: 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 feasi...
CIE A Level Chemistry复习笔记5.2.3 Gibbs Free Energy Change & Gibbs Equation
The Gibbs Equation Gibbs free energy The feasibility of a reaction does not only depend on the entropy change of the reaction, but can also be affected by the enthalpy change Therefore, using the e...
CIE A Level Chemistry复习笔记5.2.2 Calculating Entropy Changes
Calculating Entropy Changes The standard entropy change (ΔSsystemꝋ ) for a given reaction can be calculated using the standard entropies (Sꝋ ) of the reactants and products The equation to calculat...
CIE A Level Chemistry复习笔记5.2.1 Entropy & Entropy Change
Defining Entropy The entropy (S) of a given system is the number of possible arrangements of the particles and their energy in a given system In other words, it is a measure of how disordered a sys...
CIE A Level Chemistry复习笔记5.1.9 Factors Affecting Enthalpy of Hydration
Enthalpy of Hydration: Ionic Charge & Radius The standard enthalpy change of hydration (ΔHhydꝋ) is affected by the amount that the ions are attracted to the water molecules The factors which af...
CIE A Level Chemistry复习笔记5.1.8 Energy Cycle Calculations
Energy Cycle Calculations The energy cycle involving the enthalpy change of solution (ΔHsolꝋ ), lattice energy (ΔHlattꝋ), and enthalpy change of hydration (ΔHhydꝋ) can be used to calculate the diff...
CIE A Level Chemistry复习笔记5.1.7 Constructing Energy Cycles using Enthalpy Changes & Lattice Energy
Energy Cycle Using Enthalpy Changes & Lattice Energy The standard enthalpy change of hydration (ΔHhydꝋ) can be calculated by constructing energy cycles and applying Hess’s law Energy cycle invo...
