ideal gas law

American  

noun

Physics.

1. the law that the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas constant.

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ideal gas law Scientific  

1. A law that describes the relationships between measurable properties of an ideal gas. The law states that P × V = n × (R) × T, where P is pressure, V is volume, n is the number of moles of molecules, T is the absolute temperature, and R is the gas constant (8.314 joules per degree Kelvin or 1.985 calories per degree Celsius). A consequence of this law is that, under constant pressure and temperature conditions, the volume of a gas depends solely on the number of moles of its molecules, not on the type of gas.

2. Also called universal gas law

3. See also Boyle's law Charles's law van der Waals equation

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Example Sentences

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ideal gas law

"Knowledge of Bernoulli's law, the ideal gas law, and isothermal expansion are the three ingredients we baked into a model to explore how this device worked," Lipscombe said.

From Science Daily ● Jan. 23, 2024

This is not very different from the value from the ideal gas law because the pressure is not very high and the temperature is not very low.

From Textbooks ● Feb. 14, 2019

The value is somewhat different because CO2 molecules do have some volume and attractions between molecules, and the ideal gas law assumes they do not have volume or attractions.

From Textbooks ● Feb. 14, 2019

The ideal gas law is closely related to energy: the units on both sides are joules.

From Textbooks ● Aug. 12, 2015

We also noted in our discussion of the ideal gas law that PV has units of energy.

From Textbooks ● Aug. 12, 2015