Ammonia is essential to so many industries that, on a molar basis, it is the most heavily produced substance in the world. Calculate P_IGL and P_VDW (in atm) of 51.1 g of ammonia in a 3.000-L container at 0°C and 400.°C, the industrial temperature. (See Table 5.4 for the values of the van der Waals constants.)