Roll over one of the variables above to view its definition.
P → pressure (Pascals or atmospheres)
V → volume (liters or cm3)
n → number of molecules (moles)
R → universal gas constant (value depends on units used for pressure measurements).
Most common are 0.0821
numerator: L times atm, denominator: mol times K
L * atm
mol * K
and 8.31
numerator: L times kPa, denominator: mol times K
L * kPa
mol * K
T → temperature (Kelvin)