Mass Transfer The diffusivity (D) in a binary gas mixture is related to the pressure (P) as D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 D ∝ 1/P1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Increases pressure drop, increases surface area Decreases pressure drop, increases surface area Increases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.079 0.048 0.122 0.152 0.079 0.048 0.122 0.152 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The wetted wall tower is used to determine Individual mass transfer co-efficient (M.T.C.) in gaseous system M.T.C. of individual components in a liquid-liquid system The overall M.T.C. of the system M.T.C. of liquid in liquid-gas system Individual mass transfer co-efficient (M.T.C.) in gaseous system M.T.C. of individual components in a liquid-liquid system The overall M.T.C. of the system M.T.C. of liquid in liquid-gas system ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Rotary dryers cannot handle __________ materials. Free flowing Dry Sticky Grannular Free flowing Dry Sticky Grannular ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is 1000 2000 2500 1500 1000 2000 2500 1500 ANSWER DOWNLOAD EXAMIANS APP
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