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For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.

A. Chemical potential

B. Fugacity

C. Both (A) and (B)

D. Neither (A) nor (B)

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  1. In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures…
  2. Entropy of a substance remains constant during a/an __________ change.
  3. Cp - Cv = R is valid for __________ gases.
  4. Isobaric process means a constant process.
  5. Cp of a gas at its critical temperature and pressure
  6. __________ does not change during phase transformation processes like sublimation, melting & vaporisation.
  7. Which of the following is an extensive property of a system?
  8. For a single component two phase mixture, the number of independent variable properties are
  9. Work done is a
  10. The second law of thermodynamics states that
  11. Internal energy is equal to the heat absorbed in case of a/an __________ process.
  12. For equilibrium process (i.e. reversible) in an isolated system
  13. Filling of gas from a high pressure cylinder into small bottles is an example of a/an __________ process.
  14. When a gas is expanded from high pressure region to low pressure region; temperature change occurs.…
  15. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the
  16. Clausius-Clapeyron equation is applicable to __________ equilibrium processes.
  17. A change in state involving a decrease in entropy can be spontaneous, only if
  18. Compound having large heat of formation is
  19. Joule-Thomson effect i.e., a throttling process is a constant __________ process.
  20. Absorption/evolution of heat during conversion of a substance from one allotropic form to another is…
  21. Clausius-Clapeyron Equation gives accurate result, when the
  22. Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of…
  23. Entropy of an ideal gas depends upon its
  24. All gases above its inversion temperature, in a throttling process will show
  25. In the reaction; N2 + O2 2NO, increasing the pressure will result in
  26. Reduced pressure of a gas is the ratio of its
  27. Critical compressibility factor for all substances
  28. The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in…
  29. In the reaction, H2 +I2 2HI, addition of an inert gas will
  30. The absolute entropy for all crystalline substances at absolute zero temperature is