Mass Transfer Prandtl number for water at 20°C is about 0.7 70 7 150 0.7 70 7 150 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 Saturated feed is not used The latent heat of vaporisation of the more and less volatile components are greatly different A total condenser is used An azeotrope forms Saturated feed is not used The latent heat of vaporisation of the more and less volatile components are greatly different ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. ) (1 + Ro) = Ro/Ri (1 - Ri) = Ro/Ri (1 - Ro) = Ro/Ri (1 + Ri) = Ro/Ri (1 + Ro) = Ro/Ri (1 - Ri) = Ro/Ri (1 - Ro) = Ro/Ri (1 + Ri) = Ro/Ri ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient of liquid is Not affected by the temperature Affected much less by temperature than that for gases Affected more by temperature than that for gases None of these Not affected by the temperature Affected much less by temperature than that for gases Affected more by temperature than that for gases None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate period, the rate of drying decreases with the Increase in air humidity Decrease in air temperature Both A & B Neither A nor B Increase in air humidity Decrease in air temperature Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of these columns incurs the lowest pressure drop? Packed column (with dumped packing) Packed column (with stacked packing) Bubble plate column Pulse column Packed column (with dumped packing) Packed column (with stacked packing) Bubble plate column Pulse column ANSWER DOWNLOAD EXAMIANS APP
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