Entropy

Energy (OCR A Level Chemistry)

6 Full Lesson Bundle covering the first 6 chapters in the OCR A Level Chemistry Chapter on Energy Lesson 1: Lattice Enthalpy **By the end of the lesson students will: 1. Explain the term lattice enthalpy 2. Understand the factors that determine the size of lattice enthalpy 3. Explain the terms standard enthalpy change of formation and first ionisation energy** Lesson 2: Born-Haber Cycles **By the end of the lesson students will: **1. Construct Born Haber Cycle diagrams for ionic compounds from enthalpy change values **2. Calculate the value for lattice enthalpy from Born Haber Cycle diagrams **3. Calculate other enthalpy change values from Born Haber Cycle diagrams Lesson 3: Enthalpy Changes of Solution & Hydration **By the end of the lesson students will: **1. Define the terms enthalpy change of solution and hydration **2. Construct enthalpy cycles using the enthalpy change of solution of a simple ionic solid **3. Qualitatively explain the effect of ionic charge and ionic radius on the exothermic value of lattice enthalpy and enthalpy change of hydration** Lesson 4: Entropy **By the end of lesson students will: **1. Know that entropy is a measure of the dispersal of energy in a system, which is greater the more disordered a system **2. Explain the difference in entropy of solids, liquids and gases **3. Calculate the entropy change of a reactant based on the entropies provided for the reactants and products Lesson 5: Gibbs Free Energy (Part 1) **By the end of the lesson students will: **1. Explain that the feasibility of a process depends upon ΔG being negative which in turn depends upon ΔS, ΔH and the T of the system **2. Recall the Gibbs’ Equation and calculate ΔG, ΔH, ΔS or T **3.Calculate ΔG, ΔH, ΔS or T using the Gibbs’ Equation Lesson 6: Gibbs Free Energy (Part 2) By the end of the lessons students will: **1. Explain that the feasibility of a process depends upon ΔG being negative which in turn depends upon ΔS, ΔH and the T of the system 2. Recall the Gibbs’ Equation and calculate ΔG, ΔH, ΔS or 3. Calculate ΔG, ΔH, ΔS or T using the Gibbs’ Equation** The teacher will be able to check students have met these learning objectives through starter activities, discussion questions, mini AfL tasks and practice questions for students to complete ***Declaimer: Please refrain from purchasing this popular resource for an interview lesson or a formal observation. This is because planning your own lessons, including using your own lesson PowerPoints, is a fundamental skill of a qualified/unqualified teacher that will be assessed during the scenarios outlined above***