Mass Transfer Heat sensitive materials with very high latent heat of vaporisation may be economically separated using Distillation Absorption Evaporation Liquid extraction Distillation Absorption Evaporation Liquid extraction ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusivity of a liquid Increases with temperature Is independent of temperature Decreases with temperature May increase or decrease with temperature Increases with temperature Is independent of temperature Decreases with temperature May increase or decrease with temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity None of these Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity None of these Mass diffusivity to momentum diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 9 10 1 8 9 10 1 8 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency May increase or decrease ; depends on individual design Decreases Increases Remains same May increase or decrease ; depends on individual design Decreases Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Swenson-Walker crystalliser is a __________ unit Continuous Cooling (adiabatic)-cum-evaporation Semi-batch Batch Continuous Cooling (adiabatic)-cum-evaporation Semi-batch Batch ANSWER DOWNLOAD EXAMIANS APP
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