Home

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

B. Δ S1 is sometimes > Δ SR

C. Δ S1 is always > Δ SR

D. Δ S1 is always = Δ SR

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Joule-Thomson co-efficient depends on the
  2. The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is
  3. At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.
  4. Pick out the wrong statement.
  5. The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point…
  6. The point at which all the three (solid, liquid and gas) phases co-exist, is known as the __________…
  7. Which of the following processes cannot be made reversible even under ideal condition of operation?
  8. Cv for an ideal gas
  9. Pick out the extensive property out of the following.
  10. In an ideal refrigeration cycle, the change in internal energy of the fluid is
  11. Partial molar free energy of an element A in solution is same as its
  12. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called…
  13. Which of the following will increase the volume of a real gas by four times?
  14. For an incompressible fluid, the __________ is a function of both pressure as well as temperature.
  15. Joule-Thomson co-efficient for a perfect gas is
  16. When a gas in a vessel expands, its internal energy decreases. The process involved is
  17. For a reversible process involving only pressure-volume work
  18. The first law of thermodynamics is a restatement of the law of conservation of
  19. Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal…
  20. The value of Cp & Cv respectively for monatomic gases in Kcal/kg Mole.°K are
  21. Which of the following is not an extensive property?
  22. For a real gas, the chemical potential is given by
  23. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy…
  24. Linde gas liquefaction process employs cooling
  25. Which law of the thermodynamics provides basis for measuring the thermodynamic property?
  26. Which of the following is an undesirable characteristic of a refrigerant?
  27. Heat pump
  28. All gases during throttling process at atmospheric temperature and pressure show a cooling effect except
  29. In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured…
  30. In the equation, PVn = constant, if the value of n = 1, then it represents a reversible __________ process.