gas+simulations

= Gas Simulation =

For this assignment I want you to use the Phet Gas simulation program and Excel to examine the relationship between various properties of gases. The access the simulation program you can use this link @http://phet.colorado.edu/simulations/index.php

You will then use Excel to plot and create a xy-graph of the data collected during the simulation. The simulation can be used to confirm the gas laws discussed in class. The following variables can be examined:
 * pressure vs. temperature (gay-lussac's law)
 * volume vs. temperature (charles law)
 * amount of particles vs. temperature
 * amount of particles vs. pressure

Follow the guidelines for creating a good spreadsheet/graph:

Title & Name Headers name above the data collected (with appropriate units)

Each graph should be on a separate tab sheet and contain the following: Ö Appropriate labels for heading and xy axis Ö A wide range of data points Ö A best fit line and the best fit line equation Ö The correlation value When finished, copy the file on your wikipage with the filename as //periodnumber-lastname.xls// // Hint: If you are not sure about how to create the graphs in excel, refer to your handout or use the Internet. //


 * The Kinetic Molecular Theory**

What is the origin of the pressure exerted by a gas? The Kinetic Molecular Theory proposes that a gas is composed of a large number of particles in rapid motion. Each particle occasionally collides with a wall of the container. As a result of that collision, the particle exerts a force on the wall. What does the Kinetic Molecular Theory predict about the pressure of a gas?

For this section of the wiki, I want you to go through the excercises listed at this link.

@http://www.chm.davidson.edu/ChemistryApplets/KineticMolecularTheory/Pressure.html

Answer __all of the questions__ related to each of the animations and place them on your wikipage.

Choose one other virtual lab to include on your wikipage:

=1. Virtual Boyles Law Lab = Virtual Boyles Law ﻿1. Open the virtu﻿al boyles law animation link, and collect data for at least 20 different various pressures/volumes (make sure they vary). 2. Use excel to graphing the relationship between the Pressure (P) and Volume (V). 3. Graph the relationship between 1/Pressure (1/P) vs. Volume (V). Include the slope, y-intercept and correlation of the best-fit line. 4. Repeat the experiment using another gas. Label each graph using proper notation and titles.

2. Gas Collisions
Go to the website: @http://falstad.com/gas/.

This java applet is a simulation that demonstrates the kinetic theory of gases. Imagine if you could actually see the particles of gas that are found in a container and if you could actually see what would happen to those particles if you changed the parameters – such as volume, temperature or gravity? This applet is designed to do just that. Spend some time changing the parameters and watch what happens to the particles.

Choose two parameters to investigate and describe what happens to the particles when you change them. Write a paragraph on your wikipage that descirbes what you see happening to the particles when you change the parameters.