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? Rag paper Anthracite coal Inorganic solids Bamboo Rag paper Anthracite coal Inorganic solids Bamboo ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in Absorption of NH₃ from air by water Separation of a binary mixture by distillation All liquid-liquid diffusion systems All of these Absorption of NH₃ from air by water Separation of a binary mixture by distillation All liquid-liquid diffusion systems All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of liquids, the binary diffusivity is proportional to (where, T = temperature) T² 1/T √T T T² 1/T √T T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the wrong statement pertaining to leaching. Fine solids can not be leached in a Pachuka tank Door classifier can be used for leaching of coarse solids Vegetable seeds can be leached in either of Bollman extractor, Rotocel or Kennedy extractor Very high temperature is not needed for the leaching of sugar beet Fine solids can not be leached in a Pachuka tank Door classifier can be used for leaching of coarse solids Vegetable seeds can be leached in either of Bollman extractor, Rotocel or Kennedy extractor Very high temperature is not needed for the leaching of sugar beet ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases because of the Decreased viscosity of liquid Both Decreased viscosity of liquid & Increased diffusivity None of the listed here Increased diffusivity Decreased viscosity of liquid Both Decreased viscosity of liquid & Increased diffusivity None of the listed here Increased diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 1 10 8 9 1 10 8 9 ANSWER DOWNLOAD EXAMIANS APP
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