Mass Transfer For water-ethanol system, the minimum reflux ratio Is the optimum reflux ratio Is computed from the intercept of the operating line Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed Is the optimum reflux ratio Is computed from the intercept of the operating line Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is S < 1 S = ∞ S > 1 S = 1 S < 1 S = ∞ S > 1 S = 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower. Bubble cap Perforated tray Packed Wetted wall Bubble cap Perforated tray Packed Wetted wall ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a packed bed absorption column, the channelling will be noted by the Sharp drop in pressure drop None of these Increase in flow rate Sharp rise in pressure drop Sharp drop in pressure drop None of these Increase in flow rate Sharp rise in pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature) Log P vs . T T vs . P P vs . log T Log P vs. log T Log P vs . T T vs . P P vs . log T Log P vs. log T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of mass transfer is not dependent upon the Degree of dispersion of one fluid in the other Interfacial surface exposed between the phases None of these Both A & B Degree of dispersion of one fluid in the other Interfacial surface exposed between the phases None of these Both A & B ANSWER DOWNLOAD EXAMIANS APP
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