please i particularly need solutions for C and D already have other questions solutions please

A continuous fractionating column is to be designed to separate 30000kg/h of a mixture of 40 percent benzene and 60 percent toluene into an overhead product containing 97 percent benzene and a bottom product containing 98 percent toluene. The percentages are by weight. A reflux ratio of 3.5 is to be used. The molal latent heats of benzene and toluene are 7,360 and 7,960cal/mol respectively. Benzene and toluene form a nearly ideal solution with a relative volatility of 2.5. The feed has a boiling point of 95C at a pressure of 1atm. a) Calculate the moles of overhead product and bottom product per hour b) Determine the number of ideal plates and the position of the feed plate if i. the feed is liquid at its boiling point ii. the feed is a mixture of two-thirds vapour and one third liquid c) If steam at 1.36 atm (gauge) is used for heating. how much steam is required per hour for each of the above cases neglecting heat losses and assuming the reflux is saturated liquid? d) If cooling water enters the condenser at 25C and leaves at 40C. how much cooling water is required, in cubic meters per hour