Mass Transfer Molecular diffusion is caused by the Transfer of molecules from low concentration to high concentration region Thermal energy of the molecules Activation energy of the molecules Potential energy of the molecules Transfer of molecules from low concentration to high concentration region Thermal energy of the molecules Activation energy of the molecules Potential energy of the molecules ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Liquid diffusivity is of the order of __________ cm² /second. > 1 10-5 to 10-6 0.01 0.1 > 1 10-5 to 10-6 0.01 0.1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, Increasing the air temperature decreases the drying rate Increased air humidity decreases the rate of drying None of these Surface evaporation of unbound moisture occurs Increasing the air temperature decreases the drying rate Increased air humidity decreases the rate of drying None of these Surface evaporation of unbound moisture occurs ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Mechanical draft cooling tower Multiple effect evaporator Rotary dryer Rotating disc contactor Mechanical draft cooling tower Multiple effect evaporator Rotary dryer Rotating disc contactor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. Wet bulb Dew point Dry bulb None of these Wet bulb Dew point Dry bulb None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a packed bed absorption column, the channelling will be noted by the Increase in flow rate Sharp rise in pressure drop None of these Sharp drop in pressure drop Increase in flow rate Sharp rise in pressure drop None of these Sharp drop in pressure drop ANSWER DOWNLOAD EXAMIANS APP
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