Mass Transfer If f is defined as above, then which of the following applies to a feed at dew point? F < 1 F = 1 0 < f < 1 F > 1 F < 1 F = 1 0 < f < 1 F > 1 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) (4De/πt)1/2 (4De/t) (De.t)1/2 (De/t)1/2 (4De/πt)1/2 (4De/t) (De.t)1/2 (De/t)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent Increases Decreases Decreases linearly Remains unaffected Increases Decreases Decreases linearly Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer 'ADDUCTS' and 'CLATHRATES' are used in case of Extractive distillation None of these Absorption Crystallisation Extractive distillation None of these Absorption Crystallisation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of these columns incurs the lowest pressure drop? Packed column (with dumped packing) Packed column (with stacked packing) Bubble plate column Pulse column Packed column (with dumped packing) Packed column (with stacked packing) Bubble plate column Pulse column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As per Gilliland's equation, the diffusivity is Directly proportional to 'T1.5' Inversely proportional to 'P' All of these Dependent on the molecular volume & molecular weight of components Directly proportional to 'T1.5' Inversely proportional to 'P' All of these Dependent on the molecular volume & molecular weight of components ANSWER DOWNLOAD EXAMIANS APP
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