Mass Transfer Surface renewal model of mass transfer was enunciated by Stefan Toor and Marchello Fick Danckwerts Stefan Toor and Marchello Fick Danckwerts 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 0.2 1 0.4 0.2 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An example of elutioh is Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds Dissolution of tannin out of tree barks by water Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Separation of sugar from sugar beet by hot water Recovery of vegetable oils from seeds Dissolution of tannin out of tree barks by water ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer. Vacuum Tray Tunnel Rotary Vacuum Tray Tunnel Rotary ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. ) (1 - Ro) = Ro/Ri (1 + Ri) = Ro/Ri (1 + Ro) = Ro/Ri (1 - Ri) = Ro/Ri (1 - Ro) = Ro/Ri (1 + Ri) = Ro/Ri (1 + Ro) = Ro/Ri (1 - Ri) = Ro/Ri ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Momentum diffusivity to thermal diffusivity Mass diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity None of these Momentum diffusivity to thermal diffusivity Mass diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity None of these ANSWER DOWNLOAD EXAMIANS APP
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