Mass Transfer In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated. Flash Azeotropic Extractive Molecular Flash Azeotropic Extractive Molecular ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Channelling is most severe In dumped packing of regular units At very high liquid flow rate In towers packed randomly with crushed solids In towers packed with stacked packing In dumped packing of regular units At very high liquid flow rate In towers packed randomly with crushed solids In towers packed with stacked packing ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Humid volume, at a given temperature is a/an __________ function of humidity. Linear Logarithmic Exponential Inverse Linear Logarithmic Exponential Inverse ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be 5 metres above ground At ground level 10 metres above ground 2 metres above the ground 5 metres above ground At ground level 10 metres above ground 2 metres above the ground ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point. Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Condenser load is the same in both the cases but reboiler load is higher in case (ii) Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Condenser load is the same in both the cases but reboiler load is higher in case (ii) Both condensor and reboiler loads are higher in case (ii) as compared to case (i) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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