Mass Transfer Which of the following is an undesirable property in a tower packing? Low weight per unit volume Large weight of liquid retained Large free cross-section Large surface per unit volume Low weight per unit volume Large weight of liquid retained Large free cross-section Large surface per unit volume ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases due to Both A & B Increased diffusivity Decreased liquid viscosity Neither A nor B Both A & B Increased diffusivity Decreased liquid viscosity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower. Perforated tray Wetted wall Packed Bubble cap Perforated tray Wetted wall Packed Bubble cap ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following assumes constant molal vaporisation and overflow? Plate absorption column Ponchan-Savarit method Enthalpy concentration method McCabe-Thiele method Plate absorption column Ponchan-Savarit method Enthalpy concentration method McCabe-Thiele method ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer H₂S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H₂S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is 0.56 2 1.56 1 0.56 2 1.56 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a single component absorber, the operating line is straight only when plotted in term of __________ units. Mole ratio Mole fraction None of these Partial pressure Mole ratio Mole fraction None of these Partial pressure ANSWER DOWNLOAD EXAMIANS APP
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