Athree effect evaporator is run in parallel mode. this is, fresh feed which 10% nonvolatile solid is fed in at 120 of to each effect. product streams from all effects are 60%. assume that is no bpr and that there is a 40 of temperature driving-force difference in each heat exchanger. condensate temperature in the final effect is 120 of. assuming that heat capacities are constant at 1 btu/lb of and that latent heat of vaporization of water is 1,000 btu/lb. calculate the feed rate to each state if 10,000 lb/hr of saturated stem is used in the first stage.