Mass Transfer In the constant rate period of the rate of drying curve for batch drying, None of these Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs Rate of drying decreases abruptly None of these Cracks develop on the surface of the solid Surface evaporation of unbound moisture occurs Rate of drying decreases abruptly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called None of these Decoction Elutriation or elution Percolation None of these Decoction Elutriation or elution Percolation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The cooling effect in a cooling tower can not be increased by Reducing the humidity of entering air Lowering the barometric pressure Increasing the air velocity over the wet surfaces None of these Reducing the humidity of entering air Lowering the barometric pressure Increasing the air velocity over the wet surfaces None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An example of elutioh is Recovery of vegetable oils from seeds Dissolution of tannin out of tree barks by water Separation of sugar from sugar beet by hot water Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank Recovery of vegetable oils from seeds Dissolution of tannin out of tree barks by water Separation of sugar from sugar beet by hot water Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 8 12 10 6 8 12 10 6 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of 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 Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
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