Mass Transfer As per Gilliland's equation, the diffusivity is All of these Inversely proportional to 'P' Dependent on the molecular volume & molecular weight of components Directly proportional to 'T1.5' All of these Inversely proportional to 'P' Dependent on the molecular volume & molecular weight of components Directly proportional to 'T1.5' ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is 0.9 0.5 0.7 0.25 0.9 0.5 0.7 0.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is Same as simple distillation Same as differential distillation Most useful for handling binary systems Used for multicomponent systems like crude refining Same as simple distillation Same as differential distillation Most useful for handling binary systems Used for multicomponent systems like crude refining ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Overall efficiency of the distillation column is Always more than the point efficiency The ratio of number of ideal plates to actual plates The ratio of number of actual plates to ideal plates Same as the Murphree efficiency Always more than the point efficiency The ratio of number of ideal plates to actual plates The ratio of number of actual plates to ideal plates Same as the Murphree efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer McCabe-Thiele method of binary distillation does not assume that the Molar latent heats of all components are equal None of these Heat of mixing is negligible Sensible heat changes are negligible compared with latent heat changes Molar latent heats of all components are equal None of these Heat of mixing is negligible Sensible heat changes are negligible compared with latent heat changes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Positive deviation from Raoult's law means a mixture whose total pressure is None of these Less than that computed for ideality Less than the sum of the vapour pressure of the components Greater than that computed for ideality None of these Less than that computed for ideality Less than the sum of the vapour pressure of the components Greater than that computed for ideality ANSWER DOWNLOAD EXAMIANS APP
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