Prab: CSV import

2025-03-17T22:27:18Z

CSV import

← Older revision		Revision as of 22:27, 17 March 2025
Line 52:		Line 52:
	{{Thermodynamics-stub}}		{{Thermodynamics-stub}}
	{{No image}}		{{No image}}
			__NOINDEX__

Prab: CSV import

2025-02-10T20:34:14Z

CSV import

← Older revision		Revision as of 20:34, 10 February 2025
Line 51:		Line 51:

	{{Thermodynamics-stub}}		{{Thermodynamics-stub}}
			{{No image}}

Prab: CSV import

2024-06-01T22:48:22Z

CSV import

New page

== Perfect Gas ==

A '''perfect gas''', also known as an '''ideal gas''', is a theoretical gas composed of many randomly moving point particles that interact only through elastic collisions. The concept of a perfect gas is a useful approximation for the behavior of real gases under many conditions, although it fails at high pressures and low temperatures where intermolecular forces and the finite size of molecules become significant.

=== Ideal Gas Law ===
The behavior of a perfect gas is described by the [[Ideal gas law]], which is given by the equation:
\[ PV = nRT \]
where:
* \( P \) is the [[pressure]],
* \( V \) is the [[volume]],
* \( n \) is the number of [[mole (unit)|moles]] of the gas,
* \( R \) is the [[universal gas constant]],
* \( T \) is the [[temperature]] in [[Kelvin]].

=== Assumptions ===
The ideal gas model is based on several key assumptions:
* The gas consists of a large number of identical molecules moving in random directions.
* The volume of the individual gas molecules is negligible compared to the volume of the container.
* There are no intermolecular forces between the gas molecules.
* Collisions between gas molecules and with the walls of the container are perfectly elastic, meaning there is no loss of kinetic energy.

=== Deviations from Ideal Behavior ===
Real gases deviate from ideal behavior under conditions of high pressure and low temperature. These deviations can be accounted for by the [[Van der Waals equation]] and other real gas models. The [[compressibility factor]] \( Z \) is often used to quantify how much a real gas deviates from ideal behavior.

=== Applications ===
The concept of a perfect gas is widely used in various fields of [[physics]] and [[engineering]], including:
* [[Thermodynamics]]
* [[Fluid dynamics]]
* [[Chemical engineering]]
* [[Meteorology]]

=== Related Concepts ===
* [[Boyle's law]]
* [[Charles's law]]
* [[Avogadro's law]]
* [[Gay-Lussac's law]]
* [[Kinetic theory of gases]]
* [[Real gas]]
* [[Van der Waals equation]]

== See Also ==
* [[Ideal gas law]]
* [[Real gas]]
* [[Van der Waals equation]]
* [[Kinetic theory of gases]]
* [[Thermodynamics]]

[[Category:Thermodynamics]]
[[Category:Gas laws]]
[[Category:Physics]]

{{Thermodynamics-stub}}

Perfect gas - Revision history

Prab: CSV import

Prab: CSV import

Prab: CSV import