Mass Transfer The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________ 4 1 3 2 4 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases because of the Both Decreased viscosity of liquid & Increased diffusivity Increased diffusivity None of the listed here Decreased viscosity of liquid Both Decreased viscosity of liquid & Increased diffusivity Increased diffusivity None of the listed here Decreased viscosity of liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 8 6 10 12 8 6 10 12 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, None of these Surface evaporation of unbound moisture occurs Increased air humidity decreases the rate of drying Increasing the air temperature decreases the drying rate None of these Surface evaporation of unbound moisture occurs Increased air humidity decreases the rate of drying Increasing the air temperature decreases the drying rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement. None of the listed here Marginal decrease in the number of No change in theoretical Major decrease in the number of None of the listed here Marginal decrease in the number of No change in theoretical Major decrease in the number of ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. Less than Equal to More than Either A or B; depends on the solid Less than Equal to More than Either A or B; depends on the solid ANSWER DOWNLOAD EXAMIANS APP
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