Hank bursts our ideal gas law bubble, er, balloon, and brings us back to reality, explaining how the constants in the gas law aren't all that constant; how the ideal gas law we've spent the past two weeks with has to be corrected...

In this video Paul Andersen explains how gases differ from the other phases of matter. An ideal gas is a model that allows scientists to predict the movement of gas under varying pressure, temperature and volume. A description of both...

Two examples show how to (1) find the roots of a cubic equation and (2) find the roots of the Redlich Kwong equation of state that relates pressure and temperature to molar volume for read gasses.

1) What is fugacity? (analogy to activity)<br/>
2) What is it <br/>useful for?
3) What can it tell us ab<br/>out real gas behavior?

Fugacity can be related to the equilibrium constant just like pressure. In this video, we derive an expression for the Kf (fugacity equilibrium constant) using Kp and the fugacity coefficients.

Here, I work a second example in which we calculate a real gas's compression factor.<br/>

It explains the behaviour of real gases and their deviation from ideal gas behaviour(compressibility factor) It derives van der Waal's equation for real gases.