Mass Transfer Which of the following quantities need not be fixed before starting the design of a co-current absorber? Flow rate of entering liquid None of the listed here Heat gain or loss Flow rate of gas Flow rate of entering liquid None of the listed here Heat gain or loss Flow rate of gas ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Tower diameter may be decreased by Increasing the liquid flow rate Use of increased tray spacing Increasing the vapour flow rate Using higher reflux ratio Increasing the liquid flow rate Use of increased tray spacing Increasing the vapour flow rate Using higher reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the constant rate period of the rate of drying curve for batch drying, None of these Rate of drying decreases abruptly Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs None of these Rate of drying decreases abruptly Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is 8.5 x 10⁻³ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻³ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 5.6 x 10⁻⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat sensitive materials with very high latent heat of vaporisation may be economically separated using Evaporation Absorption Distillation Liquid extraction Evaporation Absorption Distillation Liquid extraction 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/t) (4De/πt)1/2 (De/t)1/2 (De.t)1/2 (4De/t) (4De/πt)1/2 (De/t)1/2 ANSWER DOWNLOAD EXAMIANS APP
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