Mass Transfer The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³) 100 500 50 1000 100 500 50 1000 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in Large number of trays Decreased solute solubility Large minimum liquid to gas (L/G) ratio All of these Large number of trays Decreased solute solubility Large minimum liquid to gas (L/G) ratio All of these 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
Mass Transfer During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the Liquid-gas interface Gas film Liquid film None of these Liquid-gas interface Gas film Liquid film None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower. Cannot be predicted as data are insufficient Is same as Is greater than Is lower than Cannot be predicted as data are insufficient Is same as Is greater than Is lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. 21.7 18.7 27.3 20 21.7 18.7 27.3 20 ANSWER DOWNLOAD EXAMIANS APP
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