Gas Laws

PhET Gas Law Simulation Name: _________________________________________

http://phet.colorado.edu/new/simulations/sims.php?sim=Gas_Properties

If the direct link does not work, use Google, and use the search terms “Phet Gas properties”.

You can download the program on your home computer if you have Java, or you can run it online.

Part 1: Play

Purpose: Play! See how everything works before we try to find any relationships.

Procedure:

1. Pump the handle once. Watch the temperature and pressure gauge. See how long it takes for the values to stabilize. Record the values in Table 1 on the next page.

2. Using the little person pushing on the wall, decrease the volume of the box in about half. Describe what happens to:

|Temperature: |

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|Pressure: |

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3. Using the little person pushing on the wall, make the volume as small as possible and watch for at least 60 seconds. Thoroughly describe what happens over the course of the full minute. Be sure to address the following in your answer:

a. What happens to the container and the little man pushing on...