The temperature at which the second Virial co-efficient of a real gas is zero is called the_____________________?

Related Mcqs:

1. Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?

   A. Decreases
   B. Increases
   C. Remains constant
   D. Decreases logarithmically

2. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?

   A. Critical
   B. Boyle
   C. Inversion
   D. Reduced

3. Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is ___________________?

   A. 0
   B. ∞
   C. +ve
   D. -ve

4. 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

5. At absolute zero temperature, the _____________ of the gas is zero?

   A. Pressure
   B. Volume
   C. Mass
   D. None of these

6. The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas)?

   A. √T
   B. T
   C. T2
   D. 1/√T

7. Which of the following is Virial equation of state ?

   A. (p + a/V2)(V – b) = nRT
   B. PV = nRT
   C. PV = A + B/V + C/V2 + D/V3 + …
   D. None of these

8. Which of the following is true for Virial equation of state ?

   A. Virial co-efficients are universal constants
   B. Virial co-efficients ‘B’ represents three body interactions
   C. Virial co-efficients are function of temperature only
   D. For some gases, Virial equations and ideal gas equations are the same

9. Which of the following represents the Virial equation of state ?

   A. T = [RT/(V- b)] – [a/√T. V(V + b)]
   B. PV/RT = 1 + (B/V) + (C/V2) + ……
   C. n1u2 + μ2μ1 = 0
   D. None of these

10. “At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero”. This follows from the __________________?

    A. Third law of thermodynamics
    B. Second law of thermodynamics
    C. Nernst heat theorem
    D. Maxwell’s relations