When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the

A. Le-Chatelier principle

B. Kopp's rule

C. Law of corresponding state

D. Arrhenius hypothesis

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. In Joule-Thomson porous plug experiment, the
  2. All gases during throttling process at atmospheric temperature and pressure show a cooling effect except
  3. Melting of ice is an example of an __________ process.
  4. The change in __________ is equal to the reversible work for compression in steady state flow process…
  5. In a reversible process
  6. The absolute entropy for all crystalline substances at absolute zero temperature is
  7. An ideal liquid refrigerant should
  8. The principle applied in liquefaction of gases is
  9. Pick out the wrong statement:
  10. Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
  11. Lenz's law results from the law of conservation of
  12. Heat is added at constant temperature in an ideal __________ cycle.
  13. In the reaction, represented by, 2SO2 + O2 2SO3; ΔH = - 42 kcal; the forward reaction will be favoured…
  14. Entropy change of mixing two liquid substances depends upon the
  15. Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system…
  16. Gibbs free energy at constant pressure and temperature under equilibrium conditions is
  17. Gibbs-Helmholtz equation is
  18. The internal energy of an ideal gas is a function of its __________ only.
  19. In an ideal refrigeration cycle, the change in internal energy of the fluid is
  20. Which of the following is not correct for a reversible adiabatic process?
  21. Number of phases in a colloidal system is:
  22. The ammonia synthesis reaction represented by N2 + 3H2 2NH3; ΔH = - 22.4 kcal, is
  23. The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while…
  24. High __________ is an undesirable property for a good refrigerant.
  25. After throttling, gas temperature
  26. It is desired to bring about a certain change in the state of a system by performing work on the system…
  27. In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than…
  28. Which of the following processes cannot be made reversible even under ideal condition of operation?
  29. Specific heat of a gas for a reversible adiabatic process is
  30. During the phase transition, __________ changes.