Specific/molar Gibbs free energy for a pure substance does not change during

A. Sublimation

B. Vaporisation

C. Melting

D. Either (A), (B) or (C)

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

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  1. The absolute entropy for all crystalline substances at absolute zero temperature is
  2. Compressibility factor of a gas is
  3. Pick out the wrong statement.
  4. What happens in a reversible adiabatic compression?
  5. Pick out the wrong statement.
  6. For a given substance at a specified temperature, activity is __________ to fugacity.
  7. What is the value of Joule-Thomson co-efficient for an ideal gas?
  8. Which of the following is not a common refrigerant?
  9. For a constant pressure reversible process, the enthalpy change (ΔH) of the system is
  10. Melting of wax is accompanied with __________ in entropy.
  11. PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.
  12. Fugacity is a measure of the
  13. Helmholtz free energy (A) is defined as
  14. A gas performs the maximum work, when it expands
  15. Which of the following represents the Virial equation of state?
  16. The value of Cp & Cv respectively for monatomic gases in Kcal/kg Mole.°K are
  17. Which of the following identities can be most easily used to verify steam table data for superheated…
  18. For a stable phase at constant pressure and temperature, the fugacity of each component in a binary…
  19. Free energy change at equilibrium is
  20. The thermodynamic law, PVy = constant, is not applicable in case of
  21. The relation connecting the fugacities of various components in a solution with one another and to composition…
  22. In a homogeneous solution, the fugacity of a component depends upon the
  23. Out of the following refrigeration cycles, which one has maximum COP?
  24. At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure.
  25. The internal energy of an incompressible fluid depends upon its
  26. Work done in an adiabatic process between two states depends on the
  27. Cp - Cv = R is valid for __________ gases.
  28. Entropy, which is a measure of the disorder of a system, is:
  29. The chemical potential for a pure substance is __________ its partial molal free energy.
  30. Chemical potential of ith component of a system is given by