Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) T⁴ √T T T² T⁴ √T T T² 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 Lewis number is close to unity They are always equal under all circumstances Solubility of the components of air in water is very small Water has a high latent heat of evaporation Lewis number is close to unity They are always equal under all circumstances Solubility of the components of air in water is very small 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. Lower than Either same or higher than Higher than Same as Lower than Either same or higher than Higher than Same as ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is Equal to the heat of formation of surface compound Equal to the heat of wetting Called integral heat of adsorption Zero Equal to the heat of formation of surface compound Equal to the heat of wetting Called integral heat of adsorption Zero ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in None of these Increased reflux ratio Increased reboiler load Greater degree of separation with a fixed number of trays None of these Increased reflux ratio Increased reboiler load Greater degree of separation with a fixed number of trays ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The McCabe Δ L law states that the Molar heats of vaporisation of components are nearly equal Linear crystal growth rate does not depend on the crystal size Linear crystal growth rate depends on the crystal size Linear crystal growth rate depends on the degree of supersaturation Molar heats of vaporisation of components are nearly equal Linear crystal growth rate does not depend on the crystal size Linear crystal growth rate depends on the crystal size Linear crystal growth rate depends on the degree of supersaturation ANSWER DOWNLOAD EXAMIANS APP
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