Mass Transfer Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for Constant molal overflow Constant relative volatility All of these Total reflux Constant molal overflow Constant relative volatility All of these Total reflux ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following increases during evaporative cooling process with recirculated water supply? Partial pressure of vapour Wet bulb temperature Relative humidity Both B and C Partial pressure of vapour Wet bulb temperature Relative humidity Both B and C ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of non-ideal gases and liquids, the molal diffusivity Is equal to the volumetric diffusivity Varies directly as the pressure Is independent of pressure Varies inversely as the pressure Is equal to the volumetric diffusivity Varies directly as the pressure Is independent of pressure Varies inversely as the pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation. Either A or B, depends on the mixture composition Lower than Equal to Higher than Either A or B, depends on the mixture composition Lower than Equal to Higher than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler Increases Decreases And the heat required in reboiler decreases Remains unaffected Increases Decreases And the heat required in reboiler decreases Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The main reason for dividing a tall packed tower into series of small towers is to Avoid flooding Reduce liquid hold up Minimise the overall pressure drop Avoid channeling Avoid flooding Reduce liquid hold up Minimise the overall pressure drop Avoid channeling ANSWER DOWNLOAD EXAMIANS APP
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