Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 2.5 0.25 1.25 0.0025 2.5 0.25 1.25 0.0025 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For water-ethanol system, the minimum reflux ratio Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed Is computed from the intercept of the operating line Is the optimum reflux ratio Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed Is computed from the intercept of the operating line Is the optimum reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The dimension of diffusivity is same as that of the Density Velocity head Kinematic viscosity Molal concentration Density Velocity head Kinematic viscosity Molal concentration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium-moisture curves of different solids None of these Depend on the humidity of the gas Are different Are same None of these Depend on the humidity of the gas Are different Are same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature of water cooled in cooling tower is always __________ temperature of entering air. Equal to the wet bulb Equal to the dry bulb Less than the wet bulb More than the wet bulb Equal to the wet bulb Equal to the dry bulb Less than the wet bulb More than the wet bulb ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The suitable evaporator for concentration of foaming liquids is a __________ evaporator. Falling film Short tube Long tube Vacuum Falling film Short tube Long tube Vacuum ANSWER DOWNLOAD EXAMIANS APP
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