Unit 13a: Thermodynamics I: Calorimetry
Reading
BJU book: Read Ch. 13 "Chemical Thermodynamics" up through Specific Heat
Topics
Labs
BJU book: Read Ch. 13 "Chemical Thermodynamics" up through Specific Heat
Topics
- First Law of Thermodynamics
- Calorimetry
- The concept of specific heat
- Enthalpy of phase changes: Heat of fusion and heat of vaporization
Labs
- Black Powder
Below: Black Powder is a mixture of charcoal (C), potassium nitrate (KNO3), and sulfur (S). The charcoal does the 'burning', the nitrate supplies the oxygen, and the sulfur binds it together to make it burn quickly. As long as you don't "confine it" within a container, it will just burn fast - not explode.
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Lecture outline
Black Powder lab
We will make and (carefully) test old fashioned black powder. The homework builds off this lab.
This is an excellent launching pad for discussing chemical reactions and thermodynamics:
- This section covers "calorimetry", the energy changes associated with heating and cooling substances.
- Ice-Water-Steam is an excellent example
Black Powder lab
We will make and (carefully) test old fashioned black powder. The homework builds off this lab.
This is an excellent launching pad for discussing chemical reactions and thermodynamics:
- Balancing chemical reactions
- Stoichiometry
- Thermodynamics
- Limiting reactants
- Moles
- Enthalpy of reaction
| black_powder_lab student handout.docx |
Homework
| 12._thermodynamics_homework_part_1.docx |
Thermodynamics Combination Problem
The problem is now posted in Canvas in quiz-format. The accompanying video is below.