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A refrigerator may be termed as a

A. Heat pump

B. Heat engine

C. Carnot engine

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. The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 >…
  3. Critical compressibility factor for all substances
  4. Refrigeration cycle
  5. Absorption/evolution of heat during conversion of a substance from one allotropic form to another is…
  6. A system is said to be isopiestic, if there is no __________ change.
  7. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the…
  8. If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical,…
  9. In an ideal gas mixture, fugacity of a species is equal to its
  10. The specific heat of saturated water vapour at 100°C is
  11. For a cyclic process, a fixed ratio between heat and work
  12. Chemical potential is a/an
  13. The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
  14. A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the…
  15. At absolute zero temperature, the __________ of the gas is zero.
  16. The acentric factor of a materical, 'ω', is defined as ω = -log10(Prsat)Tr-1 = 0.7, where,…
  17. The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing…
  18. For a constant volume process __________ by the system is used only to increase the internal energy.
  19. An isentropic process is carried out at constant
  20. Solubility of a substance which dissolves with an increase in volume and liberation of heat will be…
  21. A large iceberg melts at the base, but not at the top, because of the reason that
  22. Which is not a refrigerant?
  23. The equation, PV = nRT, is best obeyed by gases at
  24. For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion…
  25. For any system, what is the minimum number of degrees of freedom?
  26. For a single component two phase mixture, the number of independent variable properties are
  27. At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero.…
  28. The adiabatic throttling process of a perfect gas is one of constant enthalpy
  29. First law of thermodynamics deals with the
  30. Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2.Degree…