In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the________________?

Related Mcqs:

1. The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________?

   A. Relative humidity
   B. Relative saturation
   C. Percentage saturation
   D. None of these

2. Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the___________________?

   A. Nature of the liquid
   B. Nature of the gas
   C. Temperature of the liquid
   D. Total pressure

3. Enthalpy of a vapor gas mixture may be increased by increasing the________________?

   A. Temperature at constant humidity
   B. Humidity at constant temperature
   C. Temperature and the humidity
   D. All A., B. & C.

4. The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?

   A. V1/V2
   B. V2/V1
   C. V1 – V2
   D. V1.V2

5. A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?

   A. 1
   B. 2
   C. 4
   D. 8

6. A vapor whose partial pressure is less than its equilibrium vapor pressure is called a ______________ vapor?

   A. Saturated
   B. Supersaturated
   C. Superheated
   D. None of these

7. A vapor whose partial pressure is less than its equilibrium vapor pressure is called the _____________ vapor?

   A. Saturated
   B. Superheated
   C. Unsaturated
   D. Dry gaseous

8. Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?

   A. Decreases
   B. Decreases exponentially
   C. Increases
   D. Remain constant

9. Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the mixture. Dryness factor of steam is measured by a _______________ calorimeter ?

   A. Bomb
   B. Throttling
   C. Junker’s
   D. Boy’s

10. At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to___________________?

    A. Decrease in mean free path
    B. Increased collision rate among molecules
    C. Increase in molecular attraction
    D. Increase in average molecular speed