Mass Transfer Overall efficiency of the distillation column is Always more than the point efficiency Same as the Murphree efficiency The ratio of number of actual plates to ideal plates The ratio of number of ideal plates to actual plates Always more than the point efficiency Same as the Murphree efficiency The ratio of number of actual plates to ideal plates The ratio of number of ideal plates to actual plates ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible. Remains same Increases linearly Decreases Increases Remains same Increases linearly Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Schimdt number and Lewis number for pure air at atmospheric conditions are respectively 1 and 0 >1 and ≈ 1 < 1 and ≈ 1 0 and ≈ 1 1 and 0 >1 and ≈ 1 < 1 and ≈ 1 0 and ≈ 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unit operation involved in the prilling of urea is Crystallisation Both B and C Evaporation Drying Crystallisation Both B and C Evaporation Drying ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in Absorption of NH₃ from air by water All liquid-liquid diffusion systems All of these Separation of a binary mixture by distillation Absorption of NH₃ from air by water All liquid-liquid diffusion systems All of these Separation of a binary mixture by distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the Mixture (to be separated) shows positive deviation from ideality Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows negative deviation from ideality Mixture (to be separated) shows positive deviation from ideality Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows negative deviation from ideality ANSWER DOWNLOAD EXAMIANS APP
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