Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler Decreases Increases Remains unaffected And the heat required in reboiler decreases Decreases Increases Remains unaffected And the heat required in reboiler decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The most common packing used in industrial operations is __________ rings. Single spiral Lessing Cross-partition Raschig Single spiral Lessing Cross-partition Raschig 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 < 8 : 1 < 6:1 > 4 :1 > 8:1 < 8 : 1 < 6:1 > 4 :1 > 8:1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL/DA² KL².DA KL²/DA √(KL².DA) KL/DA² KL².DA KL²/DA √(KL².DA) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 0.0025 1.25 0.25 2.5 0.0025 1.25 0.25 2.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect Neither the product composition nor the fraction vaporised The product composition but not the fraction vaporised The product composition as well as the fraction vaporised The fraction vaporised but not the product composition Neither the product composition nor the fraction vaporised The product composition but not the fraction vaporised The product composition as well as the fraction vaporised The fraction vaporised but not the product composition ANSWER DOWNLOAD EXAMIANS APP
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