The entropy __________ in an irreversible cyclic process.

A. Remains constant

B. Decreases

C. Increases

D. None of these

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  1. Which of the following statement is correct?
  2. A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of…
  3. One molecule of oxygen is __________ times heavier than the hydrogen atom.
  4. The maximum stress produced in a bar of tapering section is at
  5. The unit of Young's modulus is
  6. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress…
  7. The gas constant (R) is equal to the __________ of two specific heats.
  8. The __________ states that change of internal energy of a perfect gas is directly proportional to the…
  9. When a gas is heated, change takes place in
  10. The hard coke is obtained when carbonisation of coal is carried out at
  11. The efficiency of Diesel cycle increases with
  12. If the radius of wire stretched by a load is doubled, then its Youngs modulus will be
  13. The efficiency of a Carnot engine depends on
  14. Percentage reduction in area performing tensile test on cast iron may be of the order of
  15. A cube subjected to three mutually perpendicular stress of equal intensity p expenses a volumetric strain
  16. The entropy may be expressed as a function of
  17. Which of the following materials is most elastic?
  18. The absolute zero pressure can be attained at a temperature of
  19. In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________…
  20. One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates…
  21. Tensile strength of a material is obtained by dividing the maximum load during the test by the
  22. After reaching the yielding stage while testing a mild steel specimen, strain
  23. The principal constituents of a fuel are
  24. Young's modulus is defined as the ratio of
  25. Impact strength of a material is an index of its
  26. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________…
  27. Brayton cycle consists' of following four processes
  28. In a reversible adiabatic process, the ratio of T1/T2 is equal to
  29. One Joule (J) is equal to
  30. The moment of resistance of a balanced reinforced concrete beam is based on the stresses in