Ideal gas law

Relates the pressure, volume, amount and absolute temperature of an ideal gas. It is used to estimate how a gas's state changes under typical conditions where real-gas effects are small.

PV = nRT

What the symbols mean

pressure of the gas (Pa)
volume of the gas (m^3)
amount of substance (mol)
molar gas constant, about 8.314 J/(mol·K)
thermodynamic temperature (K)

About this formula

  • FieldChemistry
  • TopicThermodynamics and gas laws
  • LevelHigh school
  • Also calledideal gas equation, general gas equation, Clapeyron equation, Mendeleev-Clapeyron equation, equation of state of an ideal gas, Mendeleev-Klapeyton equation
  • SourceWikidata Q191785

Write it in Obsidian

MathLive is a free visual math editor for Obsidian. Run Find a formula, type “ideal gas law”, and it goes into your note as editable LaTeX. You can also scan formulas from screenshots, PDFs and handwriting.

Related formulas