Non-Ideal Gases and the Van der Waals Equation

We learned about ideal gases, as well as kinetic molecular theory, which explains the laws that govern ideal gases. But some of the postulates of this theory won't always hold true. When a gas is highly pressurized and/or very cold, it will deviate from ideal gas behavior. Why might this be, and is there some other way we can do calculations on this sample of gas? There is! Take a look.

Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!

[f.r.i.e.n.d.s.forlyf]

this is my first time watching professor daves video for my study purposes. thank you so much sir

[ishgmi_]

どうもありがとうございます！ 💜 The animation is very good

[PGIFilms]

Would you be able to expand on this video to explain how the Van der Waals equation is used in cases of gas mixtures? I have many questions about how this would be applied to account for real world conditions when it comes to things like designing containment vessels or accounting for "impurities" of other gasses introduced into a containment vessel through that could affect how temperature/pressure/volume calculations are done. In this video at 3:30, the value for "a" will be a known constant for a single specific gas and the attractions between the identical molecules of the gas, and then examples of polar water molecules and non-polar oxygen molecules are presented to describe differences in reaction intensity between identical molecules of gas and later at 3:50 the variable "b" is the known constant for the size of the type of gas molecule. *How would "a" and "b" be determined when dealing with a mixture of gases within the same volume of a containment vessel?* Can you do a video on how these types of calculations would be done? Also, what about mixed phases of a gas? *Is there a variant of the Van der Waals equation that is used for things such as when dealing with relations of temperature/pressure/volumes within containment vessels that gave a gas present in multiple phases?* For example tanks of liquefied oxygen or liquid nitrogen (where there the same type of gas is present in both its liquid and gaseous form to some degree) or dry ice (where CO2 gas is technically present solid, liquid, and gaseous forms) in a sealed container? Could you make another video covering that and how Van der Waals equation relates (or does not relate) to situations involving a single type of gas in different phases within the same vessel.

[musick]

FACT: Professor Dave Explains Team decided to cut his hair because the audience keeps having fun of it. And for the audience to not be distracted by it.

[stretchdaddy]

What happened to your hair chemistry Jesus 🤯🤯🤯🤯😱😂