Which of the following is Clausius-Clapeyron Equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor ?

Related Mcqs:

1. To obtain integrated form of Clausius-Clapeyron equation, ln (P2/P1) = (ΔHV/R) (1/T1 – 1/T2) from the exact Clapeyron equation, it is assumed that the____________________?

   A. Volume of the liquid phase is negligible compared to that of vapour phase
   B. Vapour phase behaves as an ideal gas
   C. Heat of vaporisation is independent of temperature
   D. All A , B. & C.

2. 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

3. 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

4. Pick out the Clausius-Clapeyron equation from the following?

   A. dP/dT = ΔH/TΔV
   B. ln P = – (ΔH/RT) + constant
   C. ΔF = ΔH + T [∂(ΔF)/∂T]P
   D. None of these

5. Clausius-Clapeyron equation is applicable to _____________ equilibrium processes?

   A. Solid-vapor
   B. Solid-liquid
   C. Liquid-vapor
   D. All A, B. and C

6. Clausius-Clapeyron Equation gives accurate result, when the __________________?

   A. Vapour pressure is relatively low and the temperature does not vary over wide limits
   B. Vapour obeys the ideal gas law and the latent heat of vaporisation is constant
   C. Volume in the liquid state is negligible compared with that in the vapour state
   D. All A, B. and C

7. Clausius Clapeyron equation applies to the _____________ process?

   A. Sublimation
   B. Melting
   C. Vaporisation
   D. All A., B. & C.

8. 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

9. In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

   A. More
   B. Less
   C. Same
   D. Unpredictable; depends on the particular reaction

10. Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are_______________?

    A. Always greater than one
    B. Same at the same reduced temperature
    C. Same at the same reduced pressure
    D. Both B. & C