Gas laws

The gas laws are a set of laws that describe the relationship between thermodynamic temperature (T), pressure (P) and volume (V) of gases. Three of these laws, Boyle's law, Charles's law, and Gay-Lussac's law come together to form the combined gas law, which with the addition of Avogadro's law later gave way to the ideal gas law. Other important gas laws include Dalton's law of partial pressures. The kinetic theory of gases, Graham's law of effusion, and root mean square velocity all explain how individual molecules in a gas act and their relation to pressure, volume, and temperature.

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A gas which obeys these gas laws exactly is hypothetical and is known as an ideal gas (or perfect gas). An ideal gas does not exist, however, some gases follow the laws more closely than others given standard conditions.

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The most important gas law is the ideal gas law which states that:

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:qquadqquad P V = n R T

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Thermodynamic temperature: Thermodynamic temperature (formerly called absolute temperature) is a measure, in kelvins (K), of temperature for thermodynamics. A temperature of 0 K is called "absolute zero", and coincides with the minimum molecular activity (i.e., thermal energy) of matter....

Pressure: Pressure is the amount of force applied normal to a surface divided by the area of that surface. As an example of varying pressures, a finger can be pressed against a wall without making any lasting impression; however, the same finger pushing a thumbtack can easily damage the wall. Although the f...

Volume: Volume, also called capacity, is a quantification of how much space an object occupies. The SI unit for volume is the cubic metre. American spelling is cubic meter....

Gas laws related Images and Photos (experimental)

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