Mass Transfer Priming in a distillation column Reduces the overall pressure drop Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Is desirable from point efficiency consideration Reduces the overall pressure drop Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Is desirable from point efficiency consideration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter < 6:1 < 8 : 1 > 8:1 > 4 :1 < 6:1 < 8 : 1 > 8:1 > 4 :1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The unit of volumetric diffusivity is Cm³/sec Cm/sec Cm²/sec Cm²/seC₂ Cm³/sec Cm/sec Cm²/sec Cm²/seC₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the feed to a distillation column is a saturated liquid, slope of the feed line is None of these Zero Unity Infinity None of these Zero Unity Infinity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer High pressure at the bottom of a distillation tower handling heat sensitive materials results in Very efficient operation Thermal decomposition of bottoms Erosion of the tower Increased relative volatility Very efficient operation Thermal decomposition of bottoms Erosion of the tower Increased relative volatility ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In steam distillation, the Temperature is more than 100° C Temperature is higher than the boiling point of either component Product must be immiscible with water Temperature is 100°C Temperature is more than 100° C Temperature is higher than the boiling point of either component Product must be immiscible with water Temperature is 100°C ANSWER DOWNLOAD EXAMIANS APP
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