Fundamental principle of refrigeration is based on the __________ law of thermodynamics.

A. Zeroth

B. First

C. Second

D. Third

Related Questions

  1. Pick out the wrong statement.
  2. Sublimation temperature of dry ice (solid CO2) is __________ °C.
  3. The four properties of a system viz. P, V, T, S are related by __________ equation.
  4. The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmanns…
  5. Chemical potential (an intensive property) of a substance is a force that drives the chemical system…
  6. Henry's law is closely obeyed by a gas, when its __________ is extremely high.
  7. For a spontaneous process, free energy
  8. The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while…
  9. Which of the following is affected by the temperature?
  10. An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas…
  11. Which of the following is not a reversible process?
  12. Refrigerants commonly used for domestic refrigerators are
  13. The kinetic energy of gas molecule is zero at
  14. Absolute zero temperature signifies the
  15. The chemical potential for a pure substance is __________ its partial molal free energy.
  16. For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions,…
  17. Specific __________ does not change during a phase change (e.g. sublimation, melting, vaporisation etc.).
  18. The quantitative effect of temperature on chemical equilibrium is given by the
  19. Gibbs free energy (G) is represented by, G = H - TS, whereas Helmholtz free energy, (A) is given by,…
  20. Water on heating from 1 to 4°C
  21. For a thermodynamic system containing 'x' chemical species, the maximum number of phases that can co-exist…
  22. Enthalpy changes over a constant pressure path are always zero for __________ gas.
  23. When a system is in equilibrium for all possible processes, the differential or finite change of entropy…
  24. The standard state of a gas (at a given temperature) is the state in which fugacity is equal to
  25. Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…
  26. In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants)
  27. When dilute aqueous solutions of two salts are mixed, the process is associated with
  28. First law of thermodynamics is mathematically stated as
  29. Pick out the correct equation relating 'F' and 'A'.
  30. Compressibility factor of a gas is

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