Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 2.5 to 3 5 3 to 4 1.2 to 1.5 2.5 to 3 5 3 to 4 1.2 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in All liquid-liquid diffusion systems Separation of a binary mixture by distillation All of these Absorption of NH₃ from air by water All liquid-liquid diffusion systems Separation of a binary mixture by distillation All of these Absorption of NH₃ from air by water ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Selectivity of the solvent used in solvent extraction should be < 1 1 > 1 < 1 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is > 1 < 1 1 > 1 < 1 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/2a D/a Proportional to √D Dependent on the Reynolds number D/2a D/a Proportional to √D Dependent on the Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction, Inversely Exponentially None of these Linearly Inversely Exponentially None of these Linearly ANSWER DOWNLOAD EXAMIANS APP
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