Mass Transfer The diffusivity (D) in a binary gas mixture is related to the temperature (T) as D ∝ T2 D ∝ T1.5 D ∝ T D ∝ T0.5 D ∝ T2 D ∝ T1.5 D ∝ T D ∝ T0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same. Constant rate Neither A nor B Unsaturated surface Both A & B Constant rate Neither A nor B Unsaturated surface Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Gaseous diffusion co-efficient increases with increase in the None of the listed here Temperature Both Pressure & Temperature Pressure None of the listed here Temperature Both Pressure & Temperature Pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption. Higher than Same as Either same or higher than Lower than Higher than Same as Either same or higher than Lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The minimum number of theoretical plates is required for achieving a given separation in distillation column with Zero reflux ratio Minimum reflux ratio Total reflux No reflux Zero reflux ratio Minimum reflux ratio Total reflux No reflux ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant. Partial pressure of water vapor None of these Wet bulb temperature Relative humidity Partial pressure of water vapor None of these Wet bulb temperature Relative humidity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS