A-Level2022年夏季大考A*幾率較高的科目有哪些？
夏季大考出分已經有一段時間了，而三大國際考局也隨后放出了今年的成績統計數據，A-Level夏考成績如何？讓我們來看看2022年夏考三大考試局A*幾率較高的科目有哪些？ 三大考試局A*率 ▶? CAIE考試局 A-Level...
Edexcel A Level Chemistry:復習筆記5.5.5 Continuous Monitoring Method
Continuous Monitoring Method Continuous?monitoring?involves collecting experimental data throughout the course of a reaction to plot a concentration-time graph Two of the most common ways to...
Edexcel A Level Chemistry:復習筆記5.5.4 Initial Rates Method
Initial Rates Methods The?initial rates method?determines the rate at the very start of the reaction when?t?= 0 The initial rate can be found by: Drawing a?concentration-time graph Adding a?...
Edexcel A Level Chemistry:復習筆記5.5.3 Rates - Experimental Techniques
Rates - Experimental Techniques To measure the?rate of a reaction, we need to be able to measure either how quickly the reactants are used up or how quickly the products are formed The metho...
Edexcel A Level Chemistry:復習筆記5.5.2 Rate Equations
Orders of Reaction The?order?of a reactant shows how the concentration of a chemical, typically a reactant, affects the rate of reaction It is the power to which the concentration of that re...
Edexcel A Level Chemistry:復習筆記5.5.1 Rates of Reaction
Rates of Reaction - Introduction The?rate of reaction?refers to the change in the amount or concentration of a reactant?or?product per unit time The units for rate of reaction are mol dm-3?s...
Edexcel A Level Chemistry:復習筆記5.4.4 Feasible Reactions
Feasible Reactions Graphing the Gibbs Equation The Gibbs equation can be expressed as the equation for a straight line ΔG??= ΔH??- TΔS? ΔG??=?-?ΔS?T??+ ΔH? y = mx + c A graph of free energy ...
Edexcel A Level Chemistry:復習筆記5.4.3 Gibbs Free Energy
Feasibility of Reactions Gibbs free energy The feasibility of a reaction is determined by two factors The?enthalpy?and?entropy change The two factors come together in a fundamental thermodyn...
Edexcel A Level Chemistry:復習筆記5.4.2 Entropy Calculations
Total Entropy Calculations If we take the reaction between sodium and chorine, we know that this is a very exothermic reaction and also involves a decrease in entropy as a solid is produced ...
