Gases 101 - How can we describe gaseous systems macroscopically and microscopically? - TIB AV-Portal

Gases 101 - How can we describe gaseous systems macroscopically and microscopically?

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Lauth, Jakob Günter (SciFox)

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Title

Gases 101 - How can we describe gaseous systems macroscopically and microscopically?

Title of Series

Physical Chemistry Basics

Number of Parts

12

Author

Lauth, Jakob Günter (SciFox)

0000-0002-4319-5413 (ORCID)

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CC Attribution 3.0 Germany:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.

Identifiers

10.5446/45976 (DOI)

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0000-0002-4319-5413 (ORCID)

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0000-0002-4319-5413 (ORCID)

Production Year

2020

Production Place

Jülich

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Abstract

PhysChemBasics#2 Gases 101 The state of an ideal gas can be calculated using the ideal gas law. The composition of gas mixtures can be given using Dalton's partial pressures. Microscopically a gas can be described by Maxwell-Boltzmann theory with the parameters average speed and mean free path being most important. Deviatons from the ideal behavior can be quantified using the van-der-Waals equation, which explains why at the critical point a gas behaves only "3/8 idealy".