The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for

A. Reversible isothermal volume change

B. Heating of a substance

C. Cooling of a substance

D. Simultaneous heating and expansion of an ideal gas

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

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  1. Pick out the wrong statement.
  2. The change in __________ is equal to the reversible work for compression in steady state flow process…
  3. For a constant volume process
  4. Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in…
  5. The expression, ΔG = nRT. ln(P2/P1), gives the free energy change
  6. Melting of ice exemplifies a/an
  7. The standard Gibbs free energy change of a reaction depends on the equilibrium
  8. High __________ is an undesirable property for a good refrigerant.
  9. Which of the following has the minimum value of COP for a given refrigeration effect?
  10. In jet refrigerators, the refrigerating fluid is practically always
  11. At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.
  12. Pick out the wrong statement.
  13. The quantitative effect of temperature on chemical equilibrium is given by the
  14. Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed…
  15. The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator…
  16. Clausius-Clapeyron equation is applicable to __________ equilibrium processes.
  17. An irreversible process
  18. Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…
  19. The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components.…
  20. Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be
  21. The internal energy of an ideal gas is a function of its __________ only.
  22. Which is an example of closed system?
  23. Charles' law for gases states that
  24. In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents…
  25. Those solutions in which there is no volume change upon mixing the components in the liquid state and…
  26. Pick out the correct statement.
  27. With increase in temperature, the atomic heat capacities of all solid elements
  28. The compressibility factor for an ideal gas is 1. Its value for any other real gas is
  29. __________ explains the equilibrium constant for any chemical reaction.
  30. For any system, what is the minimum number of degrees of freedom?