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Refrigeration cycle

A. Violates second law of thermodynamics

B. Involves transfer of heat from low temperature to high temperature

C. Both (A) and (B)

D. Neither (A) nor (B)

Related Questions

  1. A system is said to be at equilibrium, if the entropy of the system has reached __________ value.
  2. Which of the following is not an extensive property?
  3. Extensive properties of a thermodynamic system depend upon the __________ of the system.
  4. Fugacity and pressure are numerically equal, when the gas is
  5. In a reversible process
  6. PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.
  7. During the phase transition, __________ changes.
  8. Specific __________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.).
  9. Degrees of freedom at triple point will be
  10. Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance)?
  11. Free energy changes for two reaction mechanism 'X' and 'Y are respectively - 15 and - 5 units. It implies…
  12. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the
  13. The number of degrees of freedom for a mixture of ice and water (liquid) are
  14. A refrigerator may be termed as a
  15. Pick out the wrong statement.
  16. Pick out the wrong statement.
  17. Gibbs free energy per mole for a pure substance is equal to the
  18. The intensive properties are
  19. For a constant volume process
  20. __________ does not change during phase transformation processes like sublimation, melting & vaporisation.
  21. Isobaric process means a constant process.
  22. Any substance above its critical temperature exists as
  23. For a real gas, the chemical potential is given by
  24. Critical compressibility factor for all substances
  25. Which of the following is Virial equation of state?
  26. Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg…
  27. Entropy, which is a measure of the disorder of a system, is:
  28. As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then…
  29. An irreversible process
  30. The first law of thermodynamics is a statement of conservation of

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