Energy Changes and Rates of Reaction
Lesson 3: Enthalpy Change
Primary Learning Goals
I can express enthalpy changes in various ways (energy term, enthalpy change, potential energy diagram, molar enthalpy change) and convert among them.
I can solve quantitative problems involving enthalpy changes.
Work
1. Read the subsections Enthalpy Change and Representing Molar Enthalpy Change in section 5.2 of the textbook (pp298-305).
2. Study this note on representing enthalpy change.
3. Study this enthalpy-calculation example.
4. Do questions 1, 2, 3 on page 301 solutions
5. Do questions 5, 6, 7 on page 306 solutions
6. Go to Edsby and complete Energy and Rates Lesson-3 Quiz.
Resources
Video: Enthalpy (The video covers a little more detail than you need to know, and also introduces some concepts that we will cover later – Calorimetry, Hess’s Law, Enthalpy of Formation.)
Mini-Lesson: Significant Figures (15 min video)