Purpose:  To learn the graphical relationship between pressure, volume, temperature, and moles of a gas.  To derive a relationship between all four variables.

Hypothesis: If we measure the volume and pressure of a gas at different temperatures, then we can prepare a graph to display the relationship between them and prove the Gas Laws.

Materials:

Safety:

Summary of Procedure:  In this experiment, we will use Vernier electronic devices to measure the pressure of a sample of air at different volumes.  A syringe will be attached to a pressure sensor, which will measure the pressure of air inside the syringe as it is depressed and the volume is decreased.  A graph of volume vs. pressure will be made.  In this experiment, we will also use  a data collection device to measure the temperature and pressure of a sample of air in a test-tube.  The test-tube will be placed in different temperature water baths, and the resulting pressure will be measured.  A graph of temperature vs. pressure will be mad