Entropy of an ideal gas depends upon its__________________?

Related Mcqs:

1. Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?

   A. Superheated vapour
   B. Partially condensed vapour with quality of 0.9
   C. Saturated vapour
   D. Partially condensed vapour with quality of 0.1

2. 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

3. Entropy change of mixing two liquid substances depends upon the_________________?

   A. Molar concentration
   B. Quantity (i.e. number of moles)
   C. Both A. and B
   D. Neither A. nor B

4. For an ideal gas, the internal energy depends upon its ____________ only?

   A. Molecular size
   B. Temperature
   C. Volume
   D. Pressure

5. During a reversible isothermal expansion of an ideal gas, the entropy change is_________________?

   A. +ve
   B. 0
   C. -ve
   D. ∞

6. During a reversible isothermal expansion of an ideal gas, the entropy change is___________________?

   A. +ve
   B. 0
   C. -ve
   D. ∞

7. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is_________________?

   A. R loge 4
   B. R log10 4
   C. Cv log10 4
   D. Cv loge 4

8. 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

9. The heat capacities for the ideal gas state depend upon the_________________?

   A. Pressure
   B. Temperature
   C. Both A. & B.
   D. Neither A. nor B.

10. 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