Calculations in Electrolysis Faraday’s constant can be used to calculate: The mass of a substance deposited at an electrode The volume of gas liberated at an electrode Calculating the mass of a sub...
Measuring the Standard Electrode Potential There are three different types of half-cells that can be connected to a standard hydrogen electrode A metal / metal ion half-cell A non-metal / non-metal...
Standard Electrode & Standard Cell Potentials Electrode potential The electrode (reduction) potential (E) is a value which shows how easily a substance is reduced These are demonstrated using r...
又来到了一年一度的A-Level统考放榜时刻，CAIE考试局已率先放榜，全球有超过22w的AS&A2学生迎来了自己的成绩单~ 那么，今年的成绩与往年相比究竟如何呢？ 接下来就带大家先看看CAIE考试局最新发布的2022年6月...
Faraday's Law The amount of substance that is formed at an electrode during electrolysis is proportional to: The amount of time where a constant current to passes The amount of electricity, in coul...
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...
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 ...
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...
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...
