You find a useful equation in an old textbook. There is a sample calculation but suspect that the value of the universal gas constant used $\displaystyle (0.073 atm ft^{3} lb-mol^{-1}^o R^{-1}) $ is wrong. what is the correct value in these units. $\displaystyle ( atm ft^{3} lb-mol^{-1} ^o R^{-1}) $

$\displaystyle R= 8.314 J mol^{-1} K^{-1} $