Mass Transfer The binary diffusivity in gases at atmospheric conditions is about 10-9 cm/sec 10-3 sec/cm 10-4 cm²/seC₂ 10-1 cm²/sec 10-9 cm/sec 10-3 sec/cm 10-4 cm²/seC₂ 10-1 cm²/sec ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Perforated plate towers are unique for solvent extraction because, they provide Better contact of the phase Repeated coalescence & redispersion of the drop phase None of these Higher contact area Better contact of the phase Repeated coalescence & redispersion of the drop phase None of these Higher contact area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer On addition of solute in the solvent, the __________ of the solution decreases. Boiling point Both B and C Vapour pressure Freezing point Boiling point Both B and C Vapour pressure Freezing point ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Tea percolation employs Leaching None of these Absorption Liquid-liquid extraction Leaching None of these Absorption Liquid-liquid extraction ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusivity of a liquid May increase or decrease with temperature Is independent of temperature Increases with temperature Decreases with temperature May increase or decrease with temperature Is independent of temperature Increases with temperature Decreases with temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption. Either same or higher than Higher than Same as Lower than Either same or higher than Higher than Same as Lower than ANSWER DOWNLOAD EXAMIANS APP
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