Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 600 3.97 0.24 1 600 3.97 0.24 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in Separation of a binary mixture by distillation All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient varies as DAB0.5, according to the __________ theory. Surface renewal None of these Film Penetration Surface renewal None of these Film Penetration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to 2f F/2 1/f F 2f F/2 1/f F ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent. None of these > 100 100 < 100 None of these > 100 100 < 100 ANSWER DOWNLOAD EXAMIANS APP
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