1. LECTURE 6.3 – CHARLES LAW

2. Today’s Learning Targets
LT 5.8 – I can explain Charles Law, how it relates to temperature and volume, and I can calculate temperature and volume values for a given problem
LT 5.9 – I can explain Gay-Lussac’s Law, how it relates to temperature and pressure, and I can calculate temperature and pressure values for a given problem.

3. What is Charles’s Law?

4. I. Volume and Temperature
As you heat up gas molecules they move quicker and this causes them to hit the sides of the container with greater frequency.
If the container is capable of expanding, then the volume will increase as the temperature increases.

5. Charles Law Graph
This is a direct relationship!

6. How do you calculate using Charles’s Law?

7. I. Charles Law
Charles Law can be described by the equation:

8. Class Example
A gas is collected and found to fill 2.85 L at 25.0°C. What will be its volume at 273 K?

9. Table Talk
4.40 L of a gas is collected at 50.0°C. What will be its volume upon cooling to 25.0°C?

10. Stop and Jot
5.00 L of a gas is collected at 100 K and then allowed to expand to 20.0 L. What must the new temperature be in order to maintain the same pressure (as required by Charles' Law)?

11. Summarize