The change of entropy, when heat is absorbed by the gas, is

A. Positive

B. Negative

C. Positive or negative

D. None of these

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  1. Workdone in a free expansion process is
  2. The heating of gas at constant volume is governed by
  3. A thin cylindrical shell of diameter (D) and thickness (t) is subjected to an internal pressure (p).…
  4. The throttling process is __________ process.
  5. When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
  6. According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant…
  7. The energy absorbed in a body, when it is strained within the elastic limits, is known as
  8. The gas in cooling chamber of a closed cycle gas turbine is cooled at
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  11. The ratio of molar specific heats for mono-atomic gas is
  12. Reversed joule cycle is called
  13. A cylindrical section having no joint is known as
  14. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur
  15. The condition for the reversibility of a cycle is
  16. In an extensive property of a thermodynamic system
  17. Carnot cycle consists of
  18. The buckling load for a given column depends upon
  19. Shear modulus is the ratio of
  20. The efficiency of Diesel cycle approaches to Otto cycle efficiency when
  21. A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in…
  22. When both ends of a column are fixed, the effective length is
  23. The intensity of stress which causes unit strain is called
  24. One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and __________…
  25. In the below figure, the plastic range occurs
  26. According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the…
  27. The limit of eccentricity for no tensile conditions for a column of circular section of diameter (D)…
  28. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it.…
  29. First law of thermodynamics deals with
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