Mass Transfer During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant. None of these Wet bulb temperature Partial pressure of water vapor Relative humidity None of these Wet bulb temperature Partial pressure of water vapor Relative humidity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During drying of a solid, the critical moisture content increases with Both B and C Increased drying rate Increased thickness of the solid Decreased drying rate Both B and C Increased drying rate Increased thickness of the solid Decreased drying rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is an undesirable property in a tower packing? Large surface per unit volume Low weight per unit volume Large weight of liquid retained Large free cross-section Large surface per unit volume Low weight per unit volume Large weight of liquid retained Large free cross-section ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high Yes No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high Yes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The diffusivity (D) in a binary gas mixture is related to the pressure (P) as D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the liquid phase and vapour phase of a binary system obeys Raoult's and Dalton's law respectively, the relative volatility is the ratio of Vapour pressure of component A to the partial pressure of A Vapour pressure of component A to that of component B Vapour pressure of component A to the total pressure Partial pressure of component A to the total pressure Vapour pressure of component A to the partial pressure of A Vapour pressure of component A to that of component B Vapour pressure of component A to the total pressure Partial pressure of component A to the total pressure ANSWER DOWNLOAD EXAMIANS APP
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