Mass Transfer Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer. More than Same as Less than Very much less More than Same as Less than Very much less ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske equation determines the Minimum number of theoretical plates Maximum number of ideal plates Height of the distillation column Optimum reflux ratio Minimum number of theoretical plates Maximum number of ideal plates Height of the distillation column Optimum reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is 100 5 10 1 100 5 10 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing. Either A, or B ; depends on the type of packing Smaller than Equal to Greater than Either A, or B ; depends on the type of packing Smaller than Equal to Greater than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture? Inorganic solids Bamboo Rag paper Anthracite coal Inorganic solids Bamboo Rag paper Anthracite coal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of non-ideal gases and liquids, the molal diffusivity 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 Is equal to the volumetric diffusivity Varies directly as the pressure ANSWER DOWNLOAD EXAMIANS APP
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