Equipment:
- Data collection system
- Absolute pressure sensor with quick-release connectors and plastic tubing
- Sensor extension cable
- Stainless steel temperature sensor
- Ring stand
- Clamp, utility
- Beaker, 1500-mL
- Erlenmeyer flask, 250-mL
- Syringe, 60-mL
- Hot plate with magnetic stirrer and stir bar
- Rubber stopper, 2-hole
- Glycerin, several drops
- Electrical tape, roll
- Water, 1200-mL
Saftey:
- Organic solvents are extremely flammable; have no open flames in the lab during the experiment
- Do not inhale the fumes of volatile organic liquids
Method:
Part 1--> Boyle's Law
1. Start a new, manually sampled data set.
2. Before pushing the plunger (set as 60 mL), record the pressure and enter the volume.
3. One student should push the plunger in 5 mL at a time while another student records the pressure and manually enters the volume.
4. Continue to take readings at 5 mL intervals. Stop the data set when the pressure exceeds 4 atm (404 kPa).
Caution: To minimize the risk of injury or damage to the equipment, avoid over-compressing the air in the syringe.
5. Display Pressure on the y-axis of a graph and Volume on the x-axis.
6. Print the graph.
7. Save your experiment.
Part 2--> Guy-Lussac's Law
1. Start recording data.
2. Turn on the hot plate.
3. Monitor the pressure as a function of temperature until the water bath temperature reaches 80° C.
4. Stop recording data.
5. Display Pressure on the y-axis of a graph and Temperature on the x-axis.
6. Print the graph.
7. Save your experiment.