### Re: Chemistry Lab C

Posted:

**July 24th, 2015, 9:17 pm**Ideal gases are assumed to be point particles (have no volume) and not interact with each other apart from elastic collisions

The ideal gas law is a reasonable approximation for low pressures, high volumes, and high temperatures

[math]a[/math] accounts for electrostatic interaction between the gas molecules. Highly polar molecules (e.g. ammonia) have high values of [math]a[/math]. [math]b[/math] accounts for the nonzero volume of molecules. Large molecules (e.g. propane) have high values of [math]b[/math].