Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) √T T T⁴ T² √T T T⁴ T² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law. Increases Remains same Either A or B; depends on the gas Decreases Increases Remains same Either A or B; depends on the gas Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Does not affect the moisture content of the wet solid Increases with time Does not change with time Decreases with time Does not affect the moisture content of the wet solid Increases with time Does not change with time Decreases with time ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Slope of the operating line in stripping section decreases Total cost first decreases and then increases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly Slope of the operating line in stripping section decreases Total cost first decreases and then increases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent. > 100 < 100 100 None of these > 100 < 100 100 None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Drift in a cooling tower is All of these Dependent on the water lost by evaporation Desirable The water entrained by the circulating air All of these Dependent on the water lost by evaporation Desirable The water entrained by the circulating air ANSWER DOWNLOAD EXAMIANS APP
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