HOME

Course Chapters

Calculator Fundamentals

Mathematics Review

Basic Concepts

Advanced Concepts


Section Tests

Pre-test

Post-test


Useful Materials

Glossary


Online Calculators

Redox Calculator

Kinetics Arrhenius Calculator

Thermodynamics Calculator

Nuclear Decay Calculator

Linear Least Squares Regression

Newton's Method Equation Solver

Compressibility Calculator

Units Conversion Calculator

Nomenclature Calculator


Related Information Links

Texas Instruments Calculators

Casio Calculators

Sharp Calculators

Hewlett Packard Calculators


Credits

Contact Webmaster


Compressibility and Ideal Gas Approximations


This form submits information to an interactive model which calculates compressibility and pressure based on several factors. Graphs will be generated for several different temperatures, each graph showing the pressure and compressibility over a range of volumes. Input the temperatures separated by a space or comma at which you want to calculate these graphs. Up to 10 temperatures may be entered. These temperatures are proportions of the critical temperature, which is a factor in the compressibility. The critical temperature depends on the gas, but is usually low. At critical temperature, pressure, and volume, the gas changes phase.

Compressibility expresses how much a gas is behaving like an ideal gas under any conditions. If the compressibility equals one, then the gas is behaving exactly like an ideal gas. If the compressibility deviates much from one, then the ideal gas equation will not accurately model the real gas under those conditions. This script uses the Beattie-Bridgeman equation to calculate the behavior of the gas, even when not acting ideally.


GasMinimum volume
Air

Carbon Dioxide

Oxygen

Hydrogen

Ammonia

Maximum volume
Volume Step Size
Size of graphs (from 0 to 1):
Number of decimal places to use:
Temperatures to use


Developed by
Shodor
in cooperation with the Department of Chemistry,
The University of North Carolina at Chapel Hill

Copyright © 1996-2008 Shodor
Please direct questions and comments about this page to
WebMaster@shodor.org