Mass Transfer The unit of volumetric diffusivity is Cm³/sec Cm/sec Cm²/seC₂ Cm²/sec Cm³/sec Cm/sec Cm²/seC₂ Cm²/sec ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and 't' is time) (4De/t) (4De/πt)1/2 (De/t)1/2 (De.t)1/2 (4De/t) (4De/πt)1/2 (De/t)1/2 (De.t)1/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dimension of mass diffusivity is the same as that of Pressure Surface tension Dynamic viscosity Kinematic viscosity Pressure Surface tension Dynamic viscosity Kinematic viscosity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law. Increases Either A or B; depends on the gas Decreases Remains same Increases Either A or B; depends on the gas Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, continuous rectification to get pure products will require Low reflux ratio Small cross-section column Less number of trays High reflux ratio Low reflux ratio Small cross-section column Less number of trays High reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent. < 100 None of these > 100 100 < 100 None of these > 100 100 ANSWER DOWNLOAD EXAMIANS APP
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