# Langmuir equation

## Description

The Langmuir equation (also known as the Langmuir isotherm, Langmuir adsorption equation or Hill-Langmuir equation) relates the coverage or adsorption of molecules on a solid surface to gas pressure or concentration of a medium above the solid surface at a fixed temperature.

Related formulas## Variables

θ | the fractional coverage of the surface (dimensionless) |

α | constant (dimensionless) |

P | the gas pressure (dimensionless) |