Thermochemistry

Thermochemistry Objectives

1. Assess the transfer of energy as heat associated with changes in temperature and state 

2. Explain how to measure changes in energy by performing calorimetry calculations

3. Use enthalpy to illustrate the thermodynamics of chemical and physical processes

Objective 1: Assess the transfer of energy as heat associated with changes in temperature and state 

• Read Section 9.1 - Energy Basics

Upon successful completion of this objective you should be able to;

• Define energy, distinguish types of energy, and describe the nature of energy changes that accompany chemical and physical changes

• Distinguish the related properties of heat, thermal energy, and temperature

• Define and distinguish specific heat and heat capacity, and describe the physical implications of both

• Perform calculations involving heat, specific heat, and temperature change

Objective 2: Understand and apply the first law of thermodynamics using calorimetry 

• • Read Section 9.2 - Calorimetry

Upon successful completion of this objective you should be able to;

• • Explain the technique of calorimetry

  • Calculate and interpret heat and related properties using typical calorimetry data

Objective 3: Describe how energy changes are measured 

• • Read Section 9.3 - Enthalpy

Upon successful completion of this objective you should be able to;

• • State the first law of thermodynamics

  • Define enthalpy and explain its classification as a state function

  • Write and balance thermochemical equations

  • Calculate enthalpy changes for various chemical reactions

  • Explain Hess’s law and use it to compute reaction enthalpies