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  1. The value of gas constant 'R' is
  2. Entropy of the system decreases, when
  3. During the phase transition, __________ changes.
  4. The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the __________ of a substance.
  5. Sound waves propagation in air exemplifies an __________ process.
  6. Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.
  7. Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…
  8. Which of the following exemplifies an adiabatic process?
  9. Maximum work that could be secured by expanding the gas over a given pressure range is the __________…
  10. Which is a state function?
  11. Throttling process is a/an __________ process.
  12. Isobaric process means a constant process.
  13. Pick out the wrong statement.
  14. Which of the following identities can be most easily used to verify steam table data for superheated…
  15. The number of degrees of freedom for an azeotropic mixture in a two component vapour-liquid equilibria…
  16. At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.
  17. In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured…
  18. The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant…
  19. Trouton's ratio is given by (where λb, = molal heat of vaporisation of a substance at its normal…
  20. In an ideal solution, the activity of a component equals its
  21. The number of degrees of freedom for a mixture of ice and water (liquid) are
  22. Degrees of freedom at triple point will be
  23. __________ Equation predicts the activity coefficient from experimental data.
  24. Which of the following liquid metals has the highest thermal conductivity?
  25. Pick out the wrong statement
  26. Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas…
  27. All gases during throttling process at atmospheric temperature and pressure show a cooling effect except
  28. With increase in temperature, the atomic heat capacities of all solid elements
  29. The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction…
  30. The change in __________ is equal to the reversible work for compression in steady state flow process…