Mass Transfer In case of unsaturated air None of the listed here Both of the options given here Wet bulb temperature < dry bulb temperature Dew point < wet bulb temperature None of the listed here Both of the options given here Wet bulb temperature < dry bulb temperature Dew point < wet bulb 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 absolute (specific) humidity Higher dew point Higher wet bulb temperature Higher relative humidity Higher absolute (specific) humidity Higher dew point Higher wet bulb temperature Higher relative humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as K ∝ √D K ∝ D1.5 K ∝ D K ∝ D2 K ∝ √D K ∝ D1.5 K ∝ D K ∝ D2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion occurs in case of Liquid-liquid extraction Leaching Binary phase distillation Absorption Liquid-liquid extraction Leaching Binary phase distillation Absorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is 0.25 0.7 0.9 0.5 0.25 0.7 0.9 0.5 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.) 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 None of these ANSWER DOWNLOAD EXAMIANS APP
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