Mass Transfer A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process? Relative humidity of outlet air Flow rate of inlet air Temperature of the solid Humidity of inlet air Relative humidity of outlet air Flow rate of inlet air Temperature of the solid Humidity of inlet air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in Large number of trays Decreased solute solubility All of these Large minimum liquid to gas (L/G) ratio Large number of trays Decreased solute solubility All of these Large minimum liquid to gas (L/G) ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature) Remains unchanged Increases Decreases Decreases linearly Remains unchanged Increases Decreases Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Percentage saturation is __________ the relative saturation. None of these Always smaller than Always greater than Not related to None of these Always smaller than Always greater than Not related to ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In saturated gas, the Partial pressure of vapour equals the vapour pressure of the liquid at room temperature Vapour is in equilibrium with the liquid at the room temperature None of the listed here Vapour is in equilibrium with the liquid at the gas temperature Partial pressure of vapour equals the vapour pressure of the liquid at room temperature Vapour is in equilibrium with the liquid at the room temperature None of the listed here Vapour is in equilibrium with the liquid at the gas temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a Higher wet bulb temperature Higher dew point Higher absolute (specific) humidity Higher relative humidity Higher wet bulb temperature Higher dew point Higher absolute (specific) humidity Higher relative humidity ANSWER DOWNLOAD EXAMIANS APP
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