Mass Transfer During constant rate period, the rate of drying decreases with the Both A & B Decrease in air temperature Increase in air humidity Neither A nor B Both A & B Decrease in air temperature Increase in air humidity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is 1 ∞ 2 0.5 1 ∞ 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 71 min 15 min 51 min 94 min 71 min 15 min 51 min 94 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model. Both plug & perfectly mixed Plug Perfectly mixed None of the listed here Both plug & perfectly mixed Plug Perfectly mixed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H₂S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is 2 0.56 1.56 1 2 0.56 1.56 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if NSc = NPr = NLe NSc = NLe NSc = 1 NPr = NLe NSc = NPr = NLe NSc = NLe NSc = 1 NPr = NLe ANSWER DOWNLOAD EXAMIANS APP
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