Ideal gas constant: Difference between revisions
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<onlyinclude>The '''ideal gas constant''' is also known as the molar gas constant, the gas constant or the universal gas constant. This constant is written as <math>R</math>, and is a constant of proportionality (constant number that is multiplied on one side of a proportional relationship to make them equal) for the [[ideal gas law]].<ref>"Gas constant," Wikipedia, 2021. [Online]. Available: https://en.wikipedia.org/wiki/Gas_constant. [Accessed: 06-May-2021]</ref> </onlyinclude> The ideal gas law is simply <math>PV=nRT</math> where <math>P</math> is pressure, <math>V</math> is volume, <math>n</math> is the number of [[mole]]s of gas, and <math>R</math> is the ideal gas constant.<ref>"The Ideal Gas Law," Chemistry LibreTexts, 2020. [Online]. Available: https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Physical_Properties_of_Matter/States_of_Matter/Properties_of_Gases/Gas_Laws/The_Ideal_Gas_Law. [Accessed: 06-May-2021]</ref> | |||
<onlyinclude>The '''ideal gas constant''' is also known as the molar gas constant, the gas constant or the universal gas constant. This constant is written as | |||
This constant of proportionality depends on which units are used | This constant of proportionality depends on which units are used for the other variables in the ideal gas law equation. Some common values for <math>R</math> are: | ||
* 8. | * 8.3145 [[Joule|J]] /([[mole|mol]] [[Kelvin|K]]) | ||
* 0.082057 [[Litre|L]] [[atm]]/ (mole K) | * 8.3145 ([[Cubic meter|m<sup>3</sup>]] [[Pascal|Pa]]) / ([[mole|mol]] [[Kelvin|K]]) | ||
* 0.082057 [[Litre|L]] [[atm]]/ ([[mole|mol]] [[Kelvin|K]]) | |||
[[ | This constant is closely related to [[Boltzmann's constant]], <math>k_B</math> (to get the ideal gas constant from Boltzmann's constant, multiply by [[Avogadro's number]]: <math>R=N_A k_B </math>). | ||
==Further Reading== | |||
*[[Molecule]] and [[Avogadro's number]] | |||
*[[Boltzmann's constant]] | |||
*[[Ideal gas law]] | |||
*[[Pressure volume diagram]] | |||
*Or explore a [[Special:Random|random page]] | |||
==References== | |||
{{reflist}} | |||
Revision as of 18:04, 26 May 2021
The ideal gas constant is also known as the molar gas constant, the gas constant or the universal gas constant. This constant is written as , and is a constant of proportionality (constant number that is multiplied on one side of a proportional relationship to make them equal) for the ideal gas law.[1] The ideal gas law is simply where is pressure, is volume, is the number of moles of gas, and is the ideal gas constant.[2]
This constant of proportionality depends on which units are used for the other variables in the ideal gas law equation. Some common values for are:
This constant is closely related to Boltzmann's constant, (to get the ideal gas constant from Boltzmann's constant, multiply by Avogadro's number: ).
Further Reading
- Molecule and Avogadro's number
- Boltzmann's constant
- Ideal gas law
- Pressure volume diagram
- Or explore a random page
References
- ↑ "Gas constant," Wikipedia, 2021. [Online]. Available: https://en.wikipedia.org/wiki/Gas_constant. [Accessed: 06-May-2021]
- ↑ "The Ideal Gas Law," Chemistry LibreTexts, 2020. [Online]. Available: https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Physical_Properties_of_Matter/States_of_Matter/Properties_of_Gases/Gas_Laws/The_Ideal_Gas_Law. [Accessed: 06-May-2021]