__Unit 10__

Temperature and Expansion

__Unit 10__

__Reading__

BJU: Ch. 14

__Lecture Outline__

Topic 1: Thermal expansion of solids, liquids, and gases

- Be able to use the first 2 equations, below, to solve problems connected with thermal expansion.
- You 'look up' the values of alpha and beta in tables. Each substance will be different.

Topic 2: Temperature scales of Celsius, Kelvin, and Fahrenheit

- Be able to convert between all 3 temperature scales
- Always use absolute temperature (Kelvin) when using the gas laws

Topic 3: Gas Laws

- Charles', Boyle's, and Gay-Lussac's Laws are interesting, BUT ALL YOU NEED is the "Combined Gas Law" because it combines all three!
- The unnecessary terms will just 'drop out' of the Combined Gas Law formula.
- Use the Ideal Gas Law when the problem gives you (or asks for) the number of moles of gas "n".
- Make sure you use units for pressure and volume which match your chosen value of 'R', the gas constant.
- 'R' can be stated in any combination of units you want, you just need to look up its correct value for whatever units you're using.

gas-properties_en__new_version_.html |

__Homework sets__

10._temperature___expansion_homework__problems.docx |

10._gas_laws_homework__problems.docx |