In many

thermodynamics calculations, it is often easier to choose the
Universal Gas Constant in appropriate

units, instead of converting the units
of each

physical property. Following is a list of most commonly used
values of the Gas Constant:

8.31451 J • mol^{-1} • K^{-1}

8.31451 kJ • kmol^{-1} • K^{-1}

8.31451 m^{3} • Pa • mol^{-1} • K^{-1}

8.31451•10^{-3} kJ • mol^{-1} • K^{-1}

8.31451•10^{-2} L • bar • mol^{-1} • K^{-1}

8.31451•10^{1} cm^{3} • bar • mol^{-1} • K^{-1}

8.31451•10^{3} cm^{3} • kPa • mol^{-1} • K^{-1}

8.20578•10^{1} cm^{3} • atm • mol^{-1} • K^{-1}

8.20578•10^{-2} L • atm • mol^{-1} • K^{-1}

6.23640•10^{4} cm^{3} • torr • mol^{-1} • K^{-1}

6.23640•10^{1} L • torr • mol^{-1} • K^{-1}

1.98589 cal • mol^{-1} • K^{-1}

1.98589 Btu • lbmol^{-1} • R^{-1}

7.30245•10^{-1} ft^{3} • atm • lbmol^{-1} • R^{-1}

1.07316•10^{1} ft^{3} • psi • lbmol^{-1} • R^{-1}

1.54536•10^{3} ft• lb_{f} • lbmol^{-1} • R^{-1}