Mass Transfer The diffusivity (D) in a binary gas mixture is related to the pressure (P) as D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 D ∝ 1/P1.5 D ∝ 1/P D ∝ 1/P0.5 D ∝ P0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dry bulb temperature of the gas is __________ the wet bulb temperature. Less than More than None of these Equal to Less than More than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusion is caused by the Activation energy of the molecules Transfer of molecules from low concentration to high concentration region Potential energy of the molecules Thermal energy of the molecules Activation energy of the molecules Transfer of molecules from low concentration to high concentration region Potential energy of the molecules Thermal energy of the molecules ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the Phase change of the solute as it dissolves in the solvent All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle Phase change of the solute as it dissolves in the solvent All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle 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 KL².DA √(KL².DA) KL/DA² KL²/DA KL².DA √(KL².DA) KL/DA² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As per Gilliland's equation, the diffusivity is All of these Dependent on the molecular volume & molecular weight of components Inversely proportional to 'P' Directly proportional to 'T1.5' All of these Dependent on the molecular volume & molecular weight of components Inversely proportional to 'P' Directly proportional to 'T1.5' ANSWER DOWNLOAD EXAMIANS APP
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