The diffusivity (D) in a binary gas mixture is related to the temperature (T) as

Related MCQs

• If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that
• The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of
• The diffusivity (D) in a binary gas mixture is related to the pressure (P) as
• The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________
• If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is
• The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C.
• In case of liquids, the binary diffusivity is proportional to (where, T = temperature)
• Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.
• The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature.
• __________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.