According to the ideal gas law, a 9.776 mol sample of xenon gasin a 0.8177 L container at 499.7 K should exert a pressure of 490.2atm. By what percent does the pressure calculated using the van derWaals' equation differ from the ideal pressure? For Xe gas, a =4.194 L2atm/mol2 and b = 5.105×10-2 L/mol.
