Mass Transfer To get high tray efficiency Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe Time of contact between the two phases should be less Gas velocity should be very low Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe Time of contact between the two phases should be less Gas velocity should be very low ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption, both the operating and equilibrium lines will be straight for Isothermal operation None of these Dilute solutions and isothermal operation Dilute solutions Isothermal operation None of these Dilute solutions and isothermal operation Dilute solutions ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During drying of a solid, the critical moisture content increases with Decreased drying rate Increased drying rate Both B and C Increased thickness of the solid Decreased drying rate Increased drying rate Both B and C Increased thickness of the solid 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) (De/t)1/2 (4De/πt)1/2 (De.t)1/2 (4De/t) (De/t)1/2 (4De/πt)1/2 (De.t)1/2 (4De/t) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Rate of leaching increases with increasing Size of the solid Pressure Temperature Viscosity of solvent Size of the solid Pressure Temperature Viscosity of solvent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? Yes No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high Yes No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high ANSWER DOWNLOAD EXAMIANS APP
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