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Clausius-Clapeyron equation is applicable to __________ equilibrium processes.

A. Solid-vapor

B. Solid-liquid

C. Liquid-vapor

D. All (A), (B) and (C)

Correct Answer : D.


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  1. Which of the following exemplifies an adiabatic process?
  2. Fundamental principle of refrigeration is based on the __________ law of thermodynamics.
  3. The absolute entropy for all crystalline substances at absolute zero temperature is
  4. What is the ratio of adiabatic compressibility to isothermal compressibility?
  5. Boyle's law for gases states that
  6. Pick out the correct statement.
  7. Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates
  8. What happens in a reversible adiabatic expansion process?
  9. The thermodynamic law, PVy = constant, is not applicable in case of
  10. At __________ point, all the three phases (i.e. solid, liquid and gas) co-exist.
  11. Which of the following will increase the volume of a real gas by four times?
  12. Mollier chart is a __________ plot.
  13. In the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2, decrease in the pressure of the system…
  14. Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg…
  15. Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the
  16. Cp - Cv = R is valid for __________ gases.
  17. The temperature at which both liquid and gas phases are identical, is called the __________ point.
  18. The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for
  19. A refrigerator works on the principle of __________ law of thermodynamics.
  20. When pressure is applied on the system, ice ↔ water, then
  21. With increase in compression ratio, the efficiency of the otto engine
  22. During the phase transition, __________ changes.
  23. The internal energy of an ideal gas does not change in a reversible __________ process.
  24. The minimum number of phases that can exist in a system is
  25. Gibbs phase rule finds application, when heat transfer occurs by
  26. Compound having large heat of formation is
  27. For a single component two phase mixture, the number of independent variable properties are
  28. (∂H/∂T)P is the mathematical expression for
  29. Co-efficient of Performance (COP) of a refrigerator is the ratio of the
  30. Fugacity and pressure are numerically equal, when the gas is