Edexcel A Level Chemistry:复习笔记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:复习笔记5.4.4 Feasible Reactions
Feasible Reactions Graphing the Gibbs Equation The Gibbs equation can be expressed as the equation for a straight line ΔGꝋ = ΔHꝋ - TΔSꝋ ΔGꝋ = - ΔSꝋT + ΔHꝋ y = mx + c A graph of free energy ...
Edexcel A Level Chemistry:复习笔记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:复习笔记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 ...
四门AP物理学习内容有什么区别？应该如何选择？
作为AP科学类中的顶梁柱，AP物理可谓是撑起了科学类的半边天。但是新手小白在刚开始面对4门AP物理时总是傻傻分不清楚：这几门到底要学什么内容，彼此之间又有哪些异同？在选择的时候应该如何做好取舍呢？ AP物理...
Edexcel A Level Chemistry:复习笔记5.4.1 Introducing Entropy
Introducing Entropy You may have wondered why it is that endothermic reactions occur at all, after all, what can be the driving force behind endothermic reactions if the products end up in a...
2023年AP计算机科学A课程报名开启！社会考生也可报名
AP计算机既可以作为计算机专业的导论课，也可以作为其他专业学生成为当今信息社会入门课程之一。这也是很多同学选择计算机这门科目的原因。2023年AP计算机科学A课程报名开启！社会考生也可报名~ AP计算机科学A课...
Edexcel A Level Chemistry:复习笔记5.3.4 Enthalpy of Solution
Solution & Hydration Definitions Enthalpy of solution The standard enthalpy change of solution (ΔHsolꝋ) is the enthalpy change when 1 mole of an ionic substance dissolves in sufficient w...
Edexcel A Level Chemistry:复习笔记5.3.3 Polarising Power
Polarisation of Ions Theoretical lattice energies assume a perfect ionic model where the ions are 100% spherical and the attractions are purely electrostatic So overall, there has a been a c...
