At 300 k, a real gas has the following data: (p = 0.500 mpa, vm = 4.9736 dm/mol) and (p = 1.500 mpa, vm = 1.6483 dm/mol). if this real gas behaves like the van der waals gas (p = -2). determine the van der waals parameters a (in atm dm®/mol) and b (in dm®/mol). (b) (15pt) determine the value of the second virial coefficient at 600 k for the above gas based on the van der waals gas.