An irreversible process____________________?

Related Mcqs:

1. A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) ?

   A. Δ S1 is always Δ SR C. Δ S1 is always > Δ SR D. Δ S1 is always = Δ SR...

2. Entropy change for an irreversible process taking system and surrounding together is___________________?

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

3. For an irreversible process involving only pressure-volume work____________________?

   A. (dF)T, p <0 B. (dF)T, p = 0 C. (dF)T, p > 0 D. (dA)T, v >0...

4. Entropy change for an irreversible isolated system is__________________?

   A. ∞ B. 0 C. < 0 D. > 0...

5. In an irreversible process________________?

   A. Tds = dE – dW = 0 B. dE – dW – Tds = 0 C. Tds – dE + dW < 0 D. Tds – dT + dW < 0...

6. In Joule-Thomson porous plug experiment, the__________________?

   A. Enthalpy does not remain constant B. Entire apparatus is exposed to surroundings C. Temperature remains constant D. None of these...

7. Work done in an adiabatic process between two states depends on the__________________?

   A. Rate of heat transmission B. Initial state only C. End states only D. None of these...

8. ____________ explains the equilibrium constant for any chemical reaction?

   A. Henry’s law B. Law of mass action C. Hess’s law D. None of these...

9. Air-refrigeration cycle________________?

   A. Is the most efficient of all refrigeration cycles B. Has very low efficiency C. Requires relatively large quantities of air to achieve a significant amount of refrigeration D. Both B. and C...

10. The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?

    A. 0 B. ∞ C. +ve D. -ve...