Mass Transfer Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? Both heating and humidification Humidification only Heating only Evaporative cooling Both heating and humidification Humidification only Heating only Evaporative cooling ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relative volatility of a binary mixture at constant temperature __________ the total pressure. Decreases with increase in None of these Increases with increase in Is independent of Decreases with increase in None of these Increases with increase in Is independent of ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is not fixed by the process requirements, in the design of absorbers? Composition of the entering liquid Flow rate of the entering gas None of these Terminal concentrations of gas stream Composition of the entering liquid Flow rate of the entering gas None of these Terminal concentrations of gas stream ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer (NSh/NRe.NSc) is termed in mass transfer operation as the Peclet number Thermal diffusivity Momentum diffusivity Stanton number Peclet number Thermal diffusivity Momentum diffusivity Stanton number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for Total reflux All of these Constant relative volatility Constant molal overflow Total reflux All of these Constant relative volatility Constant molal overflow ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusion is caused by the Transfer of molecules from low concentration to high concentration region Potential energy of the molecules Thermal energy of the molecules Activation energy of the molecules Transfer of molecules from low concentration to high concentration region Potential energy of the molecules Thermal energy of the molecules Activation energy of the molecules ANSWER DOWNLOAD EXAMIANS APP
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