Mass Transfer Back-trapping in a distillation column Reduces pressure drop Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency Reduces pressure drop Increases tray efficiency Is desirable, as it provides improved vapour-liquid contact Decreases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Critical humidity of a solid salt means the humidity Both A and B Above which it will always become damp Below which it will always stay dry Above Which it will always become dry and below which it will always stay damp Both A and B Above which it will always become damp Below which it will always stay dry Above Which it will always become dry and below which it will always stay damp ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a single component absorber, the operating line is straight only when plotted in term of __________ units. Mole fraction Mole ratio Partial pressure None of these Mole fraction Mole ratio Partial pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 2.5 0.0025 0.25 1.25 2.5 0.0025 0.25 1.25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Relative volatility does not change appreciably with the change in Temperature Total pressure Vapour pressure of either component None of these Temperature Total pressure Vapour pressure of either component None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Most important factor to be considered in the selection of packings for absorbers is the __________ of packing. Size Durability Porosity Cost Size Durability Porosity Cost ANSWER DOWNLOAD EXAMIANS APP
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