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 NPr = NLe NSc = NLe NSc = NPr = NLe NSc = 1 NPr = NLe NSc = NLe NSc = NPr = NLe NSc = 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The diffusivity (D) in a binary gas mixture is related to the pressure (P) as D ∝ P0.5 D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns). 200-300 43835 > 500 22190 200-300 43835 > 500 22190 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature) P vs . log T Log P vs. log T Log P vs . T T vs . P P vs . log T Log P vs. log T Log P vs . T T vs . P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture? Inorganic solids Bamboo Rag paper Anthracite coal Inorganic solids Bamboo Rag paper Anthracite coal ANSWER DOWNLOAD EXAMIANS APP