Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D K ∝ D1.5 K ∝ √D K ∝ D2 K ∝ D K ∝ D1.5 K ∝ √D K ∝ D2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when An azeotrope forms Saturated feed is not used A total condenser is used The latent heat of vaporisation of the more and less volatile components are greatly different An azeotrope forms Saturated feed is not used A total condenser is used The latent heat of vaporisation of the more and less volatile components are greatly different ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The operating cost of a distillation column at minimum reflux ratio is Maximum Zero Minimum Infinite Maximum Zero Minimum Infinite ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If a₁ and a₂ are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement. None of these a₁ = 2a₂ a₁ = a₂ a₁ = 0.5 a₂ None of these a₁ = 2a₂ a₁ = a₂ a₁ = 0.5 a₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Separation of two or more components of a liquid solution can not be achieved by Liquid extraction Fractional crystallisation Evaporation Absorption Liquid extraction Fractional crystallisation Evaporation Absorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At what value of reflux ratio, number of theoretical plates in a distillation column is minimum? 1 ∞ < 1 1 ∞ < 1 ANSWER DOWNLOAD EXAMIANS APP
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