Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 600 1 3.97 0.24 600 1 3.97 0.24 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A binary mixture of benzene and cyclohexane is separated by Flash vaporisation Ordinary distillation Extractive distillation Solvent extraction Flash vaporisation Ordinary distillation Extractive distillation Solvent extraction ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 0.4 1 0.2 0.4 1 0.2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat sensitive materials like certain pharmaceuticals and food stuffs can be dried in a/an __________ dryer. Spray None of these Indirect tray Freeze Spray None of these Indirect tray Freeze ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As complete saturation of an adsorbent is approached, the differential heat of adsrop-tion approaches None of these That of normal condensation Integral heat of adsorption Zero None of these That of normal condensation Integral heat of adsorption Zero ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the Thermal diffusivity Mass transfer co-efficient Kinematic viscosity Volumetric diffusivity Thermal diffusivity Mass transfer co-efficient Kinematic viscosity Volumetric diffusivity ANSWER DOWNLOAD EXAMIANS APP
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