Mass Transfer A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. 20 18.7 27.3 21.7 20 18.7 27.3 21.7 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit) Parallel Both A & B Straight Neither A nor B Parallel Both A & B Straight Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Channelling is most severe In towers packed randomly with crushed solids At very high liquid flow rate In dumped packing of regular units In towers packed with stacked packing In towers packed randomly with crushed solids At very high liquid flow rate In dumped packing of regular units In towers packed with stacked packing ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following operations does not involve leaching? Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots Dissolving gold from ores Removing nicotine from its water solution by kerosene Dissolving sugar from the cells of the beet Dissolving pharmaceutical products from bark or roots Dissolving gold from ores Removing nicotine from its water solution by kerosene ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can be speeded up by Reducing the barometric pressure All of the listed here Increasing the air velocity and area of exposed wet surface Reducing the humidity of the air Reducing the barometric pressure All of the listed here Increasing the air velocity and area of exposed wet surface Reducing the humidity of the air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent Increases Remains unaffected Decreases Decreases linearly Increases Remains unaffected Decreases Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
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