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Third law of thermodynamics is helpful in

A. Prediction of the extent of a chemical reaction

B. Calculating absolute entropies of substances at different temperature

C. Evaluating entropy changes of chemical reaction

D. Both (B) and (C)

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

You can do it
  1. Which of the following will increase the volume of a real gas by four times?
  2. A gas can be liquefied by pressure alone only, when its temperature is __________ its critical temperature.
  3. Pick out the wrong statement
  4. The free energy change for a chemical reaction is given by (where, K = equilibrium constant)
  5. The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for
  6. Joule-Thomson effect i.e., a throttling process is a constant __________ process.
  7. Variation of equilibrium pressure with temperature for any two phases of a given substances is given…
  8. Which of the following identities can be most easily used to verify steam table data for superheated…
  9. Work done is a
  10. Reduced pressure of a gas is the ratio of its
  11. When a gas in a vessel expands, its internal energy decreases. The process involved is
  12. What is the value of ln y (where y = activity co-efficient) for ideal gases?
  13. The unit of equilibrium constant of a chemical reaction is the same as that of
  14. If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be __________…
  15. The internal energy of an ideal gas is a function of its __________ only.
  16. The necessary condition for phase equilibrium in a multiphase system of N components is that the
  17. With increase in pressure (above atmospheric pressure), the Cp of a gas
  18. Partial molar free energy of an element A in solution is same as its
  19. Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be
  20. Internal energy change of a system over one complete cycle in a cyclic process is
  21. Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…
  22. 1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated…
  23. Trouton's ratio of __________ liquids is calculated using Kistyakowsky equation.
  24. Two substances are in equilibrium in a reversible chemical reaction. If the concentration of each substance…
  25. Which of the following decreases with increase in pressure?
  26. In the reaction, represented by, 2SO2 + O2 2SO3; ΔH = - 42 kcal; the forward reaction will be favoured…
  27. In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.
  28. The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
  29. As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T)…
  30. Entropy is a measure of the __________ of a system.