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This TI-83 program is designed to solve the following types of gas law problems

1. Charles Law
2. Boyle's Law
3. The Combined Law
4. The Ideal Gas Law

The work is a modification of programming already done by Bisun and Mad Melvin, as posted at the ti.calc ftp site. I greatly appreciate their original work, which helped me greatly in organizing my thoughts and formulas.

Changes made include asking the user to choose whether you are using atmospheres or kilopascals, and then the allowing the program to solve for the correct variation of the gas constant, R. The ideal gas law can now solve for Molecular weight of an unknown gas. In addition, the Charles, Boyles, and Combined laws will solve for either original (V1, P1, T1) or new (V2, P2, T2) conditions.

As with any program freely distributed, you are free to pass this program along, provided you do not charge for it. I take no responsibility for the results you get using the program. 

As a word of warning: The program should be used only by persons who UNDERSTAND the application of these laws. For instance, if you do not know enough to use identical units for volume, the program is useless to you.

Andy Allan
www.sciencegeek.net

