Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 1.2 to 1.5 3 to 4 2.5 to 3 5 1.2 to 1.5 3 to 4 2.5 to 3 5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of non-ideal gases and liquids, the molal diffusivity 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 Is independent of pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number. Sherwood None of these Grashoff Lewis Sherwood None of these Grashoff Lewis ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Bubble cap column Sieve plate column Wetted wall column Randomly packed column Bubble cap column Sieve plate column Wetted wall column Randomly packed column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Smoke is an example of Gas dispersed in liquid Liquid dispersed in gas Solid dispersed in liquid Solid dispersed in gas Gas dispersed in liquid Liquid dispersed in gas Solid dispersed in liquid Solid dispersed in gas ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 10 12 8 6 10 12 8 6 ANSWER DOWNLOAD EXAMIANS APP
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