Entropy is a measure of the _____________ of a system?

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. Entropy, which is a measure of the disorder of a system, is__________________?

   A. Independent of pressure B. Independent of temperature C. Zero at absolute zero temperature for a perfect crystalline substance D. All A, B. & C...

3. At normal boiling point, molar entropy of vaporisation is _____________ Joule/K°.mole?

   A. 72 B. 92 C. 142 D. 192...

4. The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?

   A. Reversible isothermal volume change B. Heating of a substance C. Cooling of a substance D. Simultaneous heating and expansion of an ideal gas...

5. When a system is in equilibrium for all possible processes, the differential or finite change of entropy is__________________?

   A. < 0 B. > 0 C. = 0 D. None of these...

6. Entropy of an ideal gas depends upon its__________________?

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

7. As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is_________________?

   A. Not changed B. Decreasing C. Increasing D. Data sufficient, can’t be predicted...

8. Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?

   A. Solution B. Vaporisation C. Formation D. Sublimation...

9. Entropy change for an irreversible isolated system is__________________?

   A. ∞ B. 0 C. < 0 D. > 0...

10. Entropy is a/an___________________?

    A. State function B. Macroscopic property C. Extensive property D. None of these...