Mass Transfer Which of the following operations does not involve leaching? Removing nicotine from its water solution by kerosene Dissolving gold from ores Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots Removing nicotine from its water solution by kerosene Dissolving gold from ores Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the Mixture (to be separated) shows negative deviation from ideality Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows positive deviation from ideality Mixture (to be separated) shows negative deviation from ideality Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows positive deviation from ideality ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The McCabe Δ L law states that the Linear crystal growth rate does not depend on the crystal size Linear crystal growth rate depends on the crystal size Molar heats of vaporisation of components are nearly equal Linear crystal growth rate depends on the degree of supersaturation Linear crystal growth rate does not depend on the crystal size Linear crystal growth rate depends on the crystal size Molar heats of vaporisation of components are nearly equal Linear crystal growth rate depends on the degree of supersaturation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Drying operation under vacuum is carried out to Increase drying temperature Dry materials having high bound moisture content Dry those materials which have very high unbound mositure content Reduce drying temperature Increase drying temperature Dry materials having high bound moisture content Dry those materials which have very high unbound mositure content Reduce drying temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is 1.94 1.04 1.24 0.54 1.94 1.04 1.24 0.54 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In McCabe-Thiele method, at infinite reflux ratio The overhead product is minimum Both the operating lines coincide with diagonal Both A & B Neither A nor B The overhead product is minimum Both the operating lines coincide with diagonal Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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