Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Does not change with time Decreases with time Does not affect the moisture content of the wet solid Increases with time Does not change with time Decreases with time Does not affect the moisture content of the wet solid Increases with time ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Back-trapping in a distillation column Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Decreases tray efficiency Reduces pressure drop Is desirable, as it provides improved vapour-liquid contact Increases tray efficiency Decreases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase. Gas Both A & B Neither A nor B Liquid Gas Both A & B Neither A nor B Liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flooding in a column results due to Low velocity of the liquid High pressure drop Low pressure drop High temperature Low velocity of the liquid High pressure drop Low pressure drop High temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient is defined as Co-efficient = Flux/concentration difference None of the listed here Flux=concentration difference/co-effi-cient Flux = Co-efficient/concentration difference Co-efficient = Flux/concentration difference None of the listed here Flux=concentration difference/co-effi-cient Flux = Co-efficient/concentration difference ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature) Log P vs . T T vs . P Log P vs. log T P vs . log T Log P vs . T T vs . P Log P vs. log T P vs . log T ANSWER DOWNLOAD EXAMIANS APP
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