Performance of surfactants is being tested. the output being measured is a parameter called dishing. historically, the standard deviation of dishing observed in the baseline formulation is 100 å. the baseline formulation produces a mean dishing of 550 å. we are concerned with 50 å dishing changes.

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.