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) Straight Neither A nor B Both A & B Parallel Straight Neither A nor B Both A & B Parallel ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate) Increase 'G' and decrease 'S' Decrease both 'G' and 'S' Increase 'S' and decrease 'G' Increase both 'G' and 'S' Increase 'G' and decrease 'S' Decrease both 'G' and 'S' Increase 'S' and decrease 'G' Increase both 'G' and 'S' ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas Increases Remains same Decreases linearly Decreases Increases Remains same Decreases linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated. Molecular Flash Extractive Azeotropic Molecular Flash Extractive Azeotropic ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by Both A & B Lowering the total pressure Neither A nor B Raising the temperature Both A & B Lowering the total pressure Neither A nor B Raising the temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, increases surface area Increases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area Decreases pressure drop, increases surface area Increases pressure drop, increases surface area Increases pressure drop, decreases surface area Decreases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
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