Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL².DA KL²/DA √(KL².DA) KL/DA² KL².DA KL²/DA √(KL².DA) KL/DA² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are regenerated by heating to __________ °C. > 1000 200-330 > 500 < 150 > 1000 200-330 > 500 < 150 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient varies as DAB0.5, according to the __________ theory. Surface renewal Penetration None of these Film Surface renewal Penetration None of these Film ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Relative volatility does not change appreciably with the change in Total pressure Temperature Vapour pressure of either component None of these Total pressure Temperature Vapour pressure of either component None of these 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) T vs . P P vs . log T Log P vs. log T Log P vs . T T vs . P P vs . log T Log P vs. log T Log P vs . T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During drying of a solid, the critical moisture content increases with Increased drying rate Increased thickness of the solid Decreased drying rate Both B and C Increased drying rate Increased thickness of the solid Decreased drying rate Both B and C ANSWER DOWNLOAD EXAMIANS APP
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