Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.122 0.048 0.079 0.152 0.122 0.048 0.079 0.152 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. 18.7 21.7 20 27.3 18.7 21.7 20 27.3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, Use steam distillation Use molecular distillation An azeotrope may be formed during distillation Use high pressure distillation Use steam distillation Use molecular distillation An azeotrope may be formed during distillation Use high pressure distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as Ri = Re/(1 - Re) Ri = (1 - Re)/Re Ri = Re/(1 + Re) Ri = Re Ri = Re/(1 - Re) Ri = (1 - Re)/Re Ri = Re/(1 + Re) Ri = Re ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At a fixed total pressure, humidity depends only on the Partial pressure of vapour in the mixture Heat capacity of the vapour None of these Density of the vapour Partial pressure of vapour in the mixture Heat capacity of the vapour None of these Density of the vapour ANSWER DOWNLOAD EXAMIANS APP
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