Question 2 (20) Toluene is synthesized from benzene and methanol in a reactor at a rate of 150 mole/min. The conversion is 80%. C6H6 + CH3OH C&H CH3 + H20 The two reactants are fed in stoichiometric ratio into the reactor at a pressure of 4 atm. and an inlet temperature of 400K. The van der Waals equation is used for each one of the reactants. The critical pressures and temperatures are listed below. Methanol: Pc = 8.1 MPa, Tc = 512.6K Benzene: Pc = 495.48 kPa, Tc = 567.4K = 1. Calculate the a and b parameters for benzene and methanol. 2. Find the relationship between the specific density of benzene and methanol. 3. Write the partial pressure of benzene in terms of its specific volume and temperature. Do the same for methanol. Add the two pressures and solve for the specific volumes. 4. Calculate the total volumetric flow rate into the reactor