Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D2 K ∝ √D K ∝ D K ∝ D1.5 K ∝ D2 K ∝ √D K ∝ D K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Radioactive nuclear waste is treated in Pulsed column extractor Bollman extractor Rotating-disc contactor Mixer-settler extractor Pulsed column extractor Bollman extractor Rotating-disc contactor Mixer-settler extractor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature of water cooled in cooling tower is always __________ temperature of entering air. More than the wet bulb Equal to the dry bulb Equal to the wet bulb Less than the wet bulb More than the wet bulb Equal to the dry bulb Equal to the wet bulb Less than the wet bulb ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 1 0.2 0.4 1 0.2 0.4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Raschig ring made of procelain cannot be used for treating concentrated Sulphuric acid Alkalis Hydrochloric acid Nitric acid Sulphuric acid Alkalis Hydrochloric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an operating distillation column, the Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column Driving force for the liquid flow is its specific weight Vapors and liquids are at their dew point and bubble point respectively Highest temperature is encountered at the top of the column Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column Driving force for the liquid flow is its specific weight Vapors and liquids are at their dew point and bubble point respectively Highest temperature is encountered at the top of the column ANSWER DOWNLOAD EXAMIANS APP
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