Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL/DA² √(KL².DA) KL²/DA KL².DA KL/DA² √(KL².DA) KL²/DA KL².DA ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The unit of volumetric diffusivity is Cm²/seC₂ Cm³/sec Cm²/sec Cm/sec Cm²/seC₂ Cm³/sec Cm²/sec Cm/sec 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
Mass Transfer Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent? Cooling and dehumidification None of these Dehumidification with dry bulb temperature remaining constant Heating and dehumidification at almost constant wet bulb temperature Cooling and dehumidification None of these Dehumidification with dry bulb temperature remaining constant Heating and dehumidification at almost constant wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Small dia distillation column can be a Bubble cap Sieve tray Packed column Any of these Bubble cap Sieve tray Packed column Any of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages Remain unchanged Can either increase or decrease, depends on the system Increase Decrease Remain unchanged Can either increase or decrease, depends on the system Increase Decrease ANSWER DOWNLOAD EXAMIANS APP
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