Mass Transfer The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model. Perfectly mixed Plug Both plug & perfectly mixed None of the listed here Perfectly mixed Plug Both plug & perfectly mixed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Decreases tray efficiency Reduces pressure drop Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency Reduces pressure drop Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) 1/P 1/√P P √P 1/P 1/√P P √P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the system with maximum boiling azeotrope at 1 atm. None of these Ethyl alcohol-water Benzene-ethyl alcohol Acetone chloroform None of these Ethyl alcohol-water Benzene-ethyl alcohol Acetone chloroform 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 1500 2000 1000 2500 1500 2000 1000 2500 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency Increases Remains same Decreases May increase or decrease ; depends on individual design Increases Remains same Decreases May increase or decrease ; depends on individual design ANSWER DOWNLOAD EXAMIANS APP
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