Mass Transfer Steam distillation is used to separate Mixtures of low relative volatility High boiling substances from nonvolatile impurities Azeotropes Heat sensitive materials Mixtures of low relative volatility High boiling substances from nonvolatile impurities Azeotropes Heat sensitive materials ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Danckwerts developed the __________ theory. Surface renewal Penetration None of these Film Surface renewal Penetration None of these Film ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if NSc = NPr = NLe NSc = NLe NSc = 1 NPr = NLe NSc = NPr = NLe NSc = NLe NSc = 1 NPr = NLe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stacked packing compared to dumped packing Both A & B Provides poorer contact between the fluids Gives lower pressure drop Gives higher pressure drop Both A & B Provides poorer contact between the fluids Gives lower pressure drop Gives higher pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid ) P = P P < P P P >>P P = P P < P P P >>P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%? Normally not; but is possible if infinite number of plates are put Yes Yes ; if the reflux ratio is maximum Never Normally not; but is possible if infinite number of plates are put Yes Yes ; if the reflux ratio is maximum Never ANSWER DOWNLOAD EXAMIANS APP
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