Mass Transfer Danckwerts developed the __________ theory. Surface renewal Penetration Film None of these Surface renewal Penetration Film None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 10 8 9 1 10 8 9 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in pressure, the relative volatility for a binary system Remains same Decreases Either A or B, depends on the system Increases Remains same Decreases Either A or B, depends on the system Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Perforated plate towers are unique for solvent extraction because, they provide Repeated coalescence & redispersion of the drop phase Better contact of the phase None of these Higher contact area Repeated coalescence & redispersion of the drop phase Better contact of the phase None of these Higher contact area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when A total condenser is used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used A total condenser is used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different Saturated feed is not used ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________ 1 3 4 2 1 3 4 2 ANSWER DOWNLOAD EXAMIANS APP
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