Melting of ice exemplifies a/an

A. Adiabatic process

B. Endothermic reaction

C. Exothermic reaction

D. Process involving a chemical reaction

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  1. Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system…
  2. In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures…
  3. Critical solution temperature (or the consolute temperature) for partially miscible liquids (e.g., phenol-water)…
  4. In jet refrigerators, the refrigerating fluid is practically always
  5. In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the…
  6. A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature…
  7. Generation of heat by friction is an example of a/an __________ change.
  8. Gibbs-Duhem equation
  9. The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the __________ of a substance.
  10. Pick out the wrong statement
  11. Law of corresponding states says that
  12. Consider the process A & B shown in the figure given below: In this case, it is possible that
  13. Which of the following identities can be most easily used to verify steam table data for superheated…
  14. The adiabatic throttling process of a perfect gas is one of constant enthalpy
  15. Critical compressibility factor for all substances
  16. Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates
  17. Which of the following behaves most closely like an ideal gas?
  18. Free energy changes for two reaction mechanism 'X' and 'Y are respectively - 15 and - 5 units. It implies…
  19. Gibbs free energy at constant pressure and temperature under equilibrium conditions is
  20. For an ideal solution, the value of activity co-efficient is
  21. A refrigerator works on the principle of __________ law of thermodynamics.
  22. The second law of thermodynamics states that
  23. Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.
  24. Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would…
  25. In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than…
  26. In an irreversible process
  27. Gibbs free energy (F) is defined as
  28. Which of the following units is not present in both the vapor compression refrigeration system and absorption…
  29. The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
  30. Which of the following will increase the volume of a real gas by four times?