Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 1.25 0.25 0.0025 2.5 1.25 0.25 0.0025 2.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio increases, the slope of the operating line for rectifying section Data insufficient, cannot be predicted Increases Remains constant Decreases Data insufficient, cannot be predicted Increases Remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If f = moles of vapour present per mole of feed, then the slope of feed line is - f/(1 - f) (1 - f)/f - (f - 1)/f - 1/f - f/(1 - f) (1 - f)/f - (f - 1)/f - 1/f ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption with exothermic reaction, for fluids having Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence Pr = Sc ; there won Both A & B Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence Pr = Sc ; there won Both A & B Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Liquid diffusivity is of the order of __________ cm² /second. > 1 0.1 0.01 10-5 to 10-6 > 1 0.1 0.01 10-5 to 10-6 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 Equal to Greater than Smaller than Either A, or B ; depends on the type of packing Equal to Greater than Smaller than ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS