__________ Equation predicts the activity coefficient from experimental data.

A. Lewis-Randall

B. Margules

C. Van Laar

D. Both (B) & (C)

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  1. As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T)…
  2. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called…
  3. Free energy
  4. Mollier chart is a __________ plot.
  5. For equilibrium process (i.e. reversible) in an isolated system
  6. At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero.…
  7. After throttling, gas temperature
  8. For a single component two phase mixture, the number of independent variable properties are
  9. Joule-Thomson co-efficient depends on the
  10. Number of degrees of freedom for a three phase system in equilibrium comprising of three nonreacting…
  11. With increase in temperature, the internal energy of a substance
  12. Those solutions in which there is no volume change upon mixing the components in the liquid state and…
  13. Cp of a gas at its critical temperature and pressure
  14. When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the…
  15. The expression, nCv(T2 - T1), is for the __________ of an ideal gas.
  16. High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which…
  17. A gas mixture of three components is brought in contact with a dispersion of an organic phase in water.…
  18. Henry's law is closely obeyed by a gas, when its __________ is extremely high.
  19. When a gas is subjected to adiabatic expansion, it gets cooled due to
  20. The free energy change for a chemical reaction is given by (where, K = equilibrium constant)
  21. Which of the following is not a reversible process?
  22. The intensive properties are
  23. Which of the following is a widely used refrigerant in vapour compression refrigeration system (using…
  24. Pick out the wrong statement.
  25. The melting point of paraffin wax (which contracts on solidification) __________ with pressure rise.
  26. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy…
  27. The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 >…
  28. Cv for an ideal gas
  29. First law of thermodynamics is mathematically stated as
  30. __________ law of thermodynamics ascertains the direction of a particular spontaneous process.