Mass Transfer According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity) D 1/D D0.5 D2 D 1/D D0.5 D2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate) Decrease both 'G' and 'S' Increase both 'G' and 'S' Increase 'S' and decrease 'G' Increase 'G' and decrease 'S' Decrease both 'G' and 'S' Increase both 'G' and 'S' Increase 'S' and decrease 'G' Increase 'G' and decrease 'S' 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 Dissolution of tannin out of tree barks by water Recovery of vegetable oils from seeds Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Separation of sugar from sugar beet by hot water Dissolution of tannin out of tree barks by water Recovery of vegetable oils from seeds ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is suitable for separating the constituents of a binary system, which Form constant boiling azeotrope Form minimum boiling azeotrope Have very wide boiling points Have very close boiling points Form constant boiling azeotrope Form minimum boiling azeotrope Have very wide boiling points Have very close boiling points ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer What is the reflux ratio at total reflux? Unity Infinity Zero Data insufficient Unity Infinity Zero Data insufficient ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, Reboiler load and condenser load are minimum Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available ANSWER DOWNLOAD EXAMIANS APP
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