Mass Transfer Selectivity of the solvent used in solvent extraction should be 1 > 1 < 1 1 > 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in Both A & B Neither A nor B Degree of ideality of the solution Viscosity with concentration Both A & B Neither A nor B Degree of ideality of the solution Viscosity with concentration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is an undesirable property in a tower packing? Large free cross-section Low weight per unit volume Large weight of liquid retained Large surface per unit volume Large free cross-section Low weight per unit volume Large weight of liquid retained Large surface per unit volume ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (De/t)1/2 (4De/t) (4De/πt)1/2 (De.t)1/2 (De/t)1/2 (4De/t) (4De/πt)1/2 (De.t)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of NA/(NA + NB) for steady state molecular diffusion of gas 'A' through non-diffusing gas 'B' is 2 1 ∞ 0.5 2 1 ∞ 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer McCabe-Thiele method of binary distillation does not assume that the Sensible heat changes are negligible compared with latent heat changes Heat of mixing is negligible None of these Molar latent heats of all components are equal Sensible heat changes are negligible compared with latent heat changes Heat of mixing is negligible None of these Molar latent heats of all components are equal ANSWER DOWNLOAD EXAMIANS APP
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