Mass Transfer In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve) Remains unchanged None of these Increases Decreases Remains unchanged None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the Relative volatility is reasonably constant Mixture (to be separated) shows negative deviation from ideality Mixture (to be separated) shows positive deviation from ideality Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows negative deviation from ideality Mixture (to be separated) shows positive deviation from ideality Multicomponent distillation is involved ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 1 3.97 0.24 600 1 3.97 0.24 600 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stage efficiency in a leaching process depends on the Vapour pressure of the solution Rate of diffusion of the solute through the solid and into the liquid Time of contact between the solid and the solution Both A & B Vapour pressure of the solution Rate of diffusion of the solute through the solid and into the liquid Time of contact between the solid and the solution Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process? Flow rate of inlet air Temperature of the solid Relative humidity of outlet air Humidity of inlet air Flow rate of inlet air Temperature of the solid Relative humidity of outlet air Humidity of inlet air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusivity of a liquid 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 Increases with temperature ANSWER DOWNLOAD EXAMIANS APP
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