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
Mass Transfer For water-ethanol system, the minimum reflux ratio Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is the optimum reflux ratio Is computed from the intercept of the operating line Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is the optimum reflux ratio Is computed from the intercept of the operating line Cannot be computed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation. None of these Vacuum Atmospheric High pressure None of these Vacuum Atmospheric High pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 2.5 0.25 0.0025 1.25 2.5 0.25 0.0025 1.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or "outgassed" adsorbent to from a definite concentration of adsorbate is called its Differential heat of adsorption Heat of wetting Integral heat of adsorption Heat of normal condensation Differential heat of adsorption Heat of wetting Integral heat of adsorption Heat of normal condensation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Calculation of mass transfer co-efficient is mostly/normally done using __________ theory. Penetration None of the listed here Surface renewal Film Penetration None of the listed here Surface renewal Film ANSWER DOWNLOAD EXAMIANS APP
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