Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 600 3.97 0.24 1 600 3.97 0.24 1 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 D/a Dependent on the Reynolds number D/2a Proportional to √D D/a Dependent on the Reynolds number D/2a Proportional to √D ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Smoke is an example of Solid dispersed in gas Solid dispersed in liquid Liquid dispersed in gas Gas dispersed in liquid Solid dispersed in gas Solid dispersed in liquid Liquid dispersed in gas Gas dispersed in liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following operations does not involve leaching? Dissolving gold from ores Dissolving pharmaceutical products from bark or roots Dissolving sugar from the cells of the beet Removing nicotine from its water solution by kerosene Dissolving gold from ores Dissolving pharmaceutical products from bark or roots Dissolving sugar from the cells of the beet Removing nicotine from its water solution by kerosene 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 Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the 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 can not be distilled by indirect heating even under low pressure, because of the high boiling temperature Material to be distilled is thermally unstable or has the tendency to react with other components associated with it, at the boiling temperature Azeotropic mixture is to be separated and the final product is miscible with water Liquids decompose, if distilled directly at atmospheric pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Separation of two volatile liquids by distillation makes use of their Density difference Relative volatility Solubility Selectivity Density difference Relative volatility Solubility Selectivity ANSWER DOWNLOAD EXAMIANS APP
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