gas law
nounDefinition of gas law
: any of several statements of physics and chemistry relating to the behavior of gases: such as
a
: boyle's law
b
: charles' law
c
: a statement that the product of the pressure and volume of one mole of a gas equals the product of the gas constant by the absolute temperature (as expressed by the equation pv=RT)
— called also ideal-gas law
— compare van der waals's equation