The kinetic energy of gas molecule is zero at_____________________?

Related Mcqs:

1. Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature of the gas)__________________?

   A. T
   B. √T
   C. T2
   D. 1/√T

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

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

3. 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

4. The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________?

   A. 2M
   B. M/2
   C. M
   D. M/4

5. The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation_________________?

   A. Increases with pressure rise
   B. Decreases with increasing pressure
   C. Becomes zero at the critical point
   D. Both B. & C.

6. Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature ?

   A. Chlorine
   B. Nitrogen
   C. Ethane
   D. All the gases will have the same KE

7. “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

8. According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?

   A. T
   B. T0.5
   C. T1.5
   D. T2

9. The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?

   A. √(2KT/m)
   B. √(3KT/m)
   C. √(6KT/m)
   D. 3KT/m

10. 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