Unit 5: Thermochemistry

Learning Objectives for Unit 5 is located here.

Feel the heat. During this unit you will be introduced to the relationship between chemical concepts and its counter part, energy. In addition to thermochemistry, there will be an introduction to some thermodynamics which will be picked up also later in the course as needed pre-information is reviewed. Topics to be discussed include: heat, temperature, enthalpy, specific heat, bond length, bond energy, Hess's Law, phase changes, and more.

Practice Problems

Bond Enthalpy ΔH Calculation KEY

Hess's Law Practice with Solutions

Hess's Law Extra Practice with Answers

*denotes supplemental material, not distributed in class


Assigned Textbook Problems

Chapter 13: Properties of Solutions #17, 21

Chapter 5: Thermochemistry #28, 29, 39, 41, 43, 51, 53, 57, 63, 69, 73, 100, 104, 115

Chapter 8: Basic Concepts of Chemical Bonding #69, 71

Labs/ Demonstrations

Video Resources