Mass Transfer For which of the following unit operations, Lewis number is of significance? Gas absorption Binary distillation Humidification Adsorption Gas absorption Binary distillation Humidification Adsorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To remove all the moisture from a wet solid it requires exposure to __________ air. Highly humid High temperature None of these Perfectly dry Highly humid High temperature None of these Perfectly dry ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is suitable for the separation of components Which form maximum boiling azeotrope Having very close boiling points Having very wide boiling points Which form minimum boiling azeotrope Which form maximum boiling azeotrope Having very close boiling points Having very wide boiling points Which form minimum boiling azeotrope ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steam distillation is not recommended to be used, if the Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature Azeotropic mixture is to be separated and the final product is miscible with water Liquids decompose, if distilled directly at atmospheric pressure Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature Material can not be distilled by indirect heating even under low pressure, because of the high boiling temperature Azeotropic mixture is to be separated and the final product is miscible with water Liquids decompose, if distilled directly at atmospheric pressure Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. More than Equal to Either A or B; depends on the solid Less than More than Equal to Either A or B; depends on the solid Less than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Dependent on the Reynolds number D/2a Proportional to √D D/a Dependent on the Reynolds number D/2a Proportional to √D D/a ANSWER DOWNLOAD EXAMIANS APP
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