The relative saturation of a partially saturated mixture of vapour and gas can be increased by ________________ of the mixture?

Related Mcqs:

1. In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________________ its relative saturation?

   A. Lower than
   B. Higher than
   C. Equal to
   D. Either A. or B., depends on the mixture composition

2. Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid) ?

   A. p = P
   B. p >>P
   C. p < P
   D. p << P

3. 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__________________?

   A. 0.048
   B. 0.079
   C. 0.122
   D. 0.152

4. The adiabatic saturation curve for a vapour-gas mixture is__________________?

   A. Straight line
   B. Slightly concave upward
   C. Slightly concave downward
   D. None of these

5. The relative saturation of an unsaturated mixture of gas and vapor is independent of the___________________?

   A. Nature of the vapor
   B. Temperature of the mixture
   C. Composition of the mixture
   D. None of these

6. Percentage saturation is _______________ the relative saturation?

   A. Always smaller than
   B. Always greater than
   C. Not related to
   D. None of these

7. The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the ______________ temperature?

   A. Dew point
   B. Wet bulb
   C. Dry bulb
   D. None of these

8. The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will______________________?

   A. Increase
   B. Decrease
   C. Remain same
   D. Depend on saturated boiling point; may increase or decrease

9. 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 ?

   A. 25
   B. > 25
   C. < 25
   D. – 25

10. 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?

    A. 25
    B. > 25
    C. < 25
    D. – 25