35% benzene with a continuous fraction distillation column with a flow rate of 30,000 kg/h and 65% toluene, 97% benzene in the upper product and 98% in the lower product by weight. It will be designed to separate to contain toluene. Recovery (reflux) rate, 1 mole of product determined to be 3. Benzene and toluene are ideal with a relative volatility of 2. constitutes the system. Molal latent heat values for benzene and toluene are 7360 and 7360 respectively. It is 7960 cal/gmol. The molecular weights for benzene and toluene are 78 and 92 g/mol, respectively. The feed has a boiling point of 95C at 1 atm pressure. a) Calculate the amount of upper and lower product in mol/h. b) Specify the ideal number of stages and the stage where the feed is made for the following three different situations. Please specify. i) Liquid at feed boiling point ii) Feed liquid at 20C (specific heat 0.44 cal/gC) iii) A mixture of two-thirds liquid and one-third steam of the feed c) If steam with a gauge pressure of 20 lbf/in2 (1.36 atm) is used for heating, reduce heat losses. ignoring it and assuming the reflux is a saturated liquid, the above How much steam is required per hour for each of the three states? d) If the cooling water enters the condenser at 28C and leaves at 42C, how many cubic meters per hour? Need cooling water?