pv nrt ideal gas law
How Exactly do van der Waals forces affect the used of the use of the Ideal Gas Law?
Specifically I’m using C3H6O. I know its polar, but I don’t know how the forces affect using the ideal gas law (PV=nRT).
like, if i used the eqution why would my results be off. I’m looking more for the theory behind it, rather than the math.
The Ideal Gas Law assumes there are no intermolecular forces/interactions between each gas molecule. However, the van der Waals forces takes this into some consideration by attempting to quantatively show that the weak polar/dipole inductive or attractions by a very messy equation by using experimentally determined coefficients.
Basically:
Ideal gas Law –> assumes no intermolecular interactions
van der Waals –> assumes some polar/dipole induction interactions between molecules of gas, so you’ll get a slightly different answer from the Ideal gas law but it’ll be close
The Ideal Gas Law (Chemistry Music Video)
