Mass Transfer Which of the following remains constant during sensible cooling process ? Specific humidity & Partial pressure of vapour None of the listed here Specific humidity Partial pressure of vapour Specific humidity & Partial pressure of vapour None of the listed here Specific humidity Partial pressure of vapour ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Extraction of pencillin employs a __________ extraction coloumn. Packed None of these Centrifugal Plate Packed None of these Centrifugal Plate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and Humidified with wet bulb temperature decreasing Dehumidified None of these Humidified at constant wet bulb temperature Humidified with wet bulb temperature decreasing Dehumidified None of these Humidified at constant wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (De/t)1/2 (4De/πt)1/2 (4De/t) (De.t)1/2 (De/t)1/2 (4De/πt)1/2 (4De/t) (De.t)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is 0.001 4.605 100 9.21 0.001 4.605 100 9.21 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.) None of these Kc = Kp/RT = Km . RT/P Kc = Kp . RT = Km . RT/p Kc = Kp = Km None of these Kc = Kp/RT = Km . RT/P Kc = Kp . RT = Km . RT/p Kc = Kp = Km ANSWER DOWNLOAD EXAMIANS APP
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