Mass Transfer The diffusivity (D) in a binary gas mixture is related to the temperature (T) as D ∝ T D ∝ T0.5 D ∝ T2 D ∝ T1.5 D ∝ T D ∝ T0.5 D ∝ T2 D ∝ T1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following remains constant during sensible cooling process ? Specific humidity & Partial pressure of vapour Specific humidity Partial pressure of vapour None of the listed here Specific humidity & Partial pressure of vapour Specific humidity Partial pressure of vapour None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following unit operations makes use of Thiele-Geddes equation? Solid-liquid extraction Multicomponent absorption with chemical reaction Liquid-liquid extraction Multicomponent distillation Solid-liquid extraction Multicomponent absorption with chemical reaction Liquid-liquid extraction Multicomponent distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Priming in a distillation column Is desirable from point efficiency consideration Is characterised by the presence of foam throughout the space between trays Reduces the overall pressure drop Results from very low gas velocity Is desirable from point efficiency consideration Is characterised by the presence of foam throughout the space between trays Reduces the overall pressure drop Results from very low gas velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Plate towers Wetted wall columns Spray towers Packed towers Plate towers Wetted wall columns Spray towers Packed towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature) Log P vs . T T vs . P P vs . log T Log P vs. log T Log P vs . T T vs . P P vs . log T Log P vs. log T ANSWER DOWNLOAD EXAMIANS APP
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