Ideal Gas
What is Ideal Gas?
An ideal gas is a theoretical gas composed of randomly moving point particles that undergo perfectly elastic collisions and experience no intermolecular forces. The behavior of an ideal gas is described by the ideal gas law PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the universal gas constant, and T is absolute temperature. Real gases approximate ideal behavior at low pressures and high temperatures, where intermolecular interactions and molecular volumes are negligible.
Key Facts
Frequently Asked Questions
An ideal gas is a theoretical gas composed of randomly moving point particles that undergo perfectly elastic collisions and experience no intermolecular forces. The behavior of an ideal gas is described by the ideal gas law PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the universal gas constant, and T is absolute temperature. Real gases approximate ideal behavior at low pressures and high temperatures, where intermolecular interactions and molecular volumes are negligible.