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Critical temperature is defined as the temperature above which a gas will

A. Not liquify (barring exceptions)

B. Immediately liquify

C. Never liquify however high the pressure may be

D. None of these

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  1. The expression for entropy change given by, ΔS = - nR ln (P2/P1), holds good for
  2. A domestic refrigerator has a/an __________ cooled condenser.
  3. The absolute entropy for all crystalline substances at absolute zero temperature is
  4. Work done in an adiabatic process between two states depends on the
  5. When pressure is applied on the system, ice ↔ water, then
  6. y = specific heat ratio of an ideal gas is equal to
  7. (∂T/∂P)H is the mathematical expression for
  8. Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…
  9. Any substance above its critical temperature exists as
  10. A reasonably general expression for vapourliquid phase equilibrium at low to moderate pressure is φi…
  11. For a real gas, the chemical potential is given by
  12. The number of degree of freedom for an Azeotropic mixture of ethanol and water in vapourliquid equilibrium,…
  13. One ton of refrigeration is defined as the heat rate corresponding to melting of one ton of ice in one
  14. The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature…
  15. Forward reaction will be favoured for the exothermic reaction, represented by CO + H2O CO2 + H2, by
  16. The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by
  17. At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero.…
  18. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the…
  19. Standard temperature and pressure (S.T.P.) is
  20. Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as
  21. High __________ is an undesirable property for a good refrigerant.
  22. Internal energy is equal to the heat absorbed in case of a/an __________ process.
  23. The unit of fugacity is the same as that of the
  24. When liquid and vapour phases of one component system are in equilibrium (at a given temperature and…
  25. Which of the following is not an equation of state?
  26. Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2.Degree…
  27. In case of an __________ process, the temperature of the system increases.
  28. Extensive properties of a thermodynamic system depend upon the __________ of the system.
  29. A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the…
  30. An isentropic process is carried out at constant