Module 1
1. Module 1
1.2. In this Module
Module 1—Thinking Energy
In This Module
Lesson 1—Personal Energy Use
In Lesson 1 you will consider how your body and other biological systems use energy. You will learn about the origin of the energy in the food you eat. You will review the processes of photosynthesis, cellular respiration, and the carbon cycle; and you will consider their importance to the energy sources used by society.
You will investigate the following lesson questions:
- How does society use the energy of chemical changes?
- How do you use the energy of chemical changes in your life?
Lesson 2—How Much Energy?
How is the energy content of a food determined? In Lesson 2 you will use calorimetry to quantify energy associated with a chemical process or a food. You will use knowledge gained in this lesson to select foods to meet the energy requirements of clients in your ecotourism company.
You will investigate the following lesson question:
- How is energy quantified?
Lesson 3—Specific Heat Capacity
In Lesson 3 you will look at an important thermodynamic property unique to each substance-specific heat capacity. You will use your knowledge of specific heat capacity to evaluate materials with respect to their insulating properties.
You will investigate the following lesson question:
- How can knowledge of specific heat capacity be used in the design of a sleeping bag?
Lesson 4—Enthalpy and the Kinetic Molecular Theory
In Lesson 4 you will consider the changes in energy that are associated with chemical change.
You will investigate the following lesson questions:
- What changes occur during a chemical reaction at the particle level?
- Why do chemical changes and energy changes occur at the same time?
- What is enthalpy?
Lesson 5—Molar Enthalpy
In Lesson 5 you will learn more about enthalpy. You will understand the importance of knowing the enthalpy change for a chemical reaction per mole of reactants involved and how this may be used to evaluate different fuels used by your ecotourism company.
You will investigate the following lesson question:
- How can the energy richness of different fuels be compared?
Lesson 6—Communicating Enthalpy Change
In Lesson 6 you will learn different ways to communicate enthalpy changes for a chemical reaction.
You will investigate the following lesson question:
- How are enthalpy changes communicated?
Lesson 7—Hess’ Law
In Lesson 7 you will learn to use Hess’ law, an alternative method to calculate enthalpy change for a system without using a calorimeter. You will consider why this method might be used instead of obtaining a value through experimentation.
You will investigate the following lesson questions:
- What is Hess’ law?
- How does Hess’ law relate to enthalpies of reaction?
Lesson 8—Molar Enthalpy of Formation
In Lesson 8 you will use standard molar enthalpies of formation to calculate the enthalpy change for a chemical reaction.
You will investigate the following lesson question:
- How are standard molar enthalpies of formation used to determine the enthalpy change associated with chemical reactions?