Mass Transfer In case of steam distillation, the steam leaving the liquid is not completely saturated with distillate vapour, because Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition Total pressure is less Temperature is less Saturated steam is used for steam distillation Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium condition Total pressure is less Temperature is less Saturated steam is used for steam distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an operating distillation column, the Driving force for the liquid flow is its specific weight Vapors and liquids are at their dew point and bubble point respectively Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column Highest temperature is encountered at the top of the column Driving force for the liquid flow is its specific weight Vapors and liquids are at their dew point and bubble point respectively Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column Highest temperature is encountered at the top of the column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Neither A nor B Both A & B Ratio of the insoluble to solution is constant Solids are drained to the same extent Neither A nor B Both A & B Ratio of the insoluble to solution is constant Solids are drained to the same extent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly Total cost first decreases and then increases Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly Total cost first decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following plays an important role in problems of simultaneous heat and mass transfer? Lewis number Prandtl number Schmidt number Sherwood number Lewis number Prandtl number Schmidt number Sherwood number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation columns, the number of bubble caps per tray primarily depends upon the Allowable gas and liquid velocities Feed composition Allowable liquid velocity Allowable gas velocity Allowable gas and liquid velocities Feed composition Allowable liquid velocity Allowable gas velocity ANSWER DOWNLOAD EXAMIANS APP
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