Mass Transfer The binary diffusivity in gases and liquids vary respectively as T3/2 and √T √T and T3/2 T and T3/2 T3/2 and T T3/2 and √T √T and T3/2 T and T3/2 T3/2 and T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the All of these Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution All of these Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Inside the distillation column, the Liquids are not always at their bubble points None of these Driving force for the vapour flow is the pressure drop Pressure increases gradually from bottom to the top of the column Liquids are not always at their bubble points None of these Driving force for the vapour flow is the pressure drop Pressure increases gradually from bottom to the top of the column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL².DA KL/DA² KL²/DA √(KL².DA) KL².DA KL/DA² KL²/DA √(KL².DA) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Batch tray dryers suffers from the disadvantage of Non-uniform & low production rate High labour cost & low heat economy All of the listed here High maintenance cost Non-uniform & low production rate High labour cost & low heat economy All of the listed here High maintenance cost ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases because of the Increased diffusivity None of the listed here Both Decreased viscosity of liquid & Increased diffusivity Decreased viscosity of liquid Increased diffusivity None of the listed here Both Decreased viscosity of liquid & Increased diffusivity Decreased viscosity of liquid ANSWER DOWNLOAD EXAMIANS APP