Entropy change in case of reversible adiabatic process is

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1. What is the ratio of adiabatic compressibility to isothermal compressibility?
2. A Carnot cycle consists of the following steps:
3. Degree of freedom of the system ice-watervapour will be
4. Domestic refrigerator usually works on the __________ refrigeration cycle.
5. In jet refrigerators, the refrigerating fluid is practically always
6. An isolated system can exchange __________ with its surroundings.
7. Which of the following is a thermodynamic property of a system?
8. The temperature at which both liquid and gas phases are identical, is called the __________ point.
9. Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the
10. Pick out the undesirable property for a good refrigerant.
11. Generation of heat by friction is an example of a/an __________ change.
12. What happens in a reversible adiabatic compression?
13. During a reversible isothermal expansion of an ideal gas, the entropy change is
14. What is the degree of freedom for a system comprising liquid water equilibrium with its vapour?
15. Normal temperature and pressure (N.T.P.) corresponds to
16. The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for
17. Which of the following is true for Virial equation of state?
18. For spontaneous changes in an isolated system (S = entropy)
19. In a homogeneous solution, the activity coefficient of a component depends upon the
20. Heat is added at constant pressure in an ideal __________ cycle.
21. In case of steady flow compression polytropic process (PVn = constant), the work done on air is the…
22. If two gases have same reduced temperature and reduced pressure, then they will have the same
23. Pick out the wrong statement.
24. Pick out the extensive property out of the following.
25. Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
26. PVy = constant, holds good for an isentropic process, which is
27. The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio…
28. In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v1…
29. The unit of equilibrium constant of a chemical reaction is the same as that of
30. __________ decreases during adiabatic throttling of a perfect gas.

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