Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 2.5 0.25 0.0025 1.25 2.5 0.25 0.0025 1.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Number of plates decreases very slowly first and then more and more rapidly Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Total cost first decreases and then increases Number of plates decreases very slowly first and then more and more rapidly Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Total cost first decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Proportional to √D D/a D/2a Dependent on the Reynolds number Proportional to √D D/a D/2a Dependent on the Reynolds number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Relative volatility does not change appreciably with the change in None of these Total pressure Vapour pressure of either component Temperature None of these Total pressure Vapour pressure of either component Temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases. Chemical properties Degree of turbulence Physical properties Interfacial area Chemical properties Degree of turbulence Physical properties Interfacial area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases does not depend upon the Nature of the components Temperature Pressure None of the listed here Nature of the components Temperature Pressure None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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