Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 1.2 to 1.5 2.5 to 3 5 3 to 4 1.2 to 1.5 2.5 to 3 5 3 to 4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because Water has a high latent heat of evaporation Solubility of the components of air in water is very small They are always equal under all circumstances Lewis number is close to unity Water has a high latent heat of evaporation Solubility of the components of air in water is very small They are always equal under all circumstances Lewis number is close to unity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity. Percentage Relative Molal None of these Percentage Relative Molal None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when A total condenser is used Saturated feed is not used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different A total condenser is used Saturated feed is not used An azeotrope forms The latent heat of vaporisation of the more and less volatile components are greatly different ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated. Azeotropic Extractive Molecular Flash Azeotropic Extractive Molecular Flash ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture. Bound Equilibrium Free Unbound Bound Equilibrium Free Unbound ANSWER DOWNLOAD EXAMIANS APP
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