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gas constant

Line breaks: gas con|stant
(Symbol: R)

Definition of gas constant in English:

noun

Chemistry
The constant of proportionality in the gas equation. It is equal to 8.314 joule kelvin−1 mole−1.
Example sentences
  • According to the principle of equipartition of energy, the energy per degree of freedom for this kind of motion (called translational motion) is equal to 0.5RT, where R is the molar gas constant and T is the absolute temperature.
  • Boltzmann's constant, often referred to as the gas constant per molecule, can be substituted for R / NA which yields PV = NkT, where P is pressure, V volume, N the number of molecules, k Boltzmann's constant, and T temperature.
  • A third way of writing the universal gas law is as pV = nRT where n represents the number of moles of gas being dealt with and R represents the universal gas constant.

Definition of gas constant in:

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