Journal Entry:
When a fuel is burned, energy is released. Where do you
think that energy comes from?Consider this reaction:
CH4(g) + 2 O2(g) → CO2(g) + H2O(l)
What is happening to the methane molecules as they combust?
Learning Intentions
- We will learn how to explain the source of heat in a
combustion reaction.
- We will learn how to calculate the net energy exchange
due to a chemical reaction
- We will learn how to draw and interpret energy exchange
diagrams
Closing Task:
You can calculate
the net energy exchange due to a chemical reaction.
Content Standards being covered in this unit:
Students can develop a model to illustrate that the release or absorption of
energy from a chemical reaction system depends upon the changes in total bond
energy.(HS-PS1-4 and CCC Energy and Matter) .