Ideal gas assumptions

• No interatomic attractive forces, i.e. the intermolecular pair potential, Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \Phi_{ij}=0}
• Atoms have no extent (no finite size)