The enthalpy change when ammonia gas is dissolved in water is called the heat of

A. Solution

B. Formation

C. Dilution

D. Combustion

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  1. For an isothermal process, the internal energy of a gas
  2. With increase in temperature, the internal energy of a substance
  3. Change of state namely evaporation condensation, freezing and melting is an __________ process.
  4. Gibbs free energy (F) is defined as
  5. Refrigeration capacity of a household refrigerator may be round about __________ tons.
  6. Mollier chart is a __________ plot.
  7. If we increase the pressure on a substance (which is at its triple point), then the triple point
  8. The standard state of a gas (at a given temperature) is the state in which fugacity is equal to
  9. Joule-Thomson experiment is
  10. Heating of water under atmospheric pressure is an __________ process.
  11. Henry's law is closely obeyed by a gas, when its __________ is extremely high.
  12. During Joule-Thomson expansion of gases
  13. Fugacity and pressure are numerically equal, when the gas is
  14. In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents…
  15. Which of the following has the minimum value of COP for a given refrigeration effect?
  16. The equation Tds = dE - PdV applies to
  17. Maxwell's relation corresponding to the identity, dH = dS = Vdp + Σμi dni is
  18. Efficiency of a Carnot engine working between temperatures T1 and T2 (T1 < T) is
  19. Domestic refrigerator usually works on the __________ refrigeration cycle.
  20. The equation DU = Tds - PdV is applicable to infinitesimal changes occuring in
  21. An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas…
  22. For the reversible exothermic reaction, N2 + 3H2 2NH3, increase of pressure would
  23. Heat requirement for decomposition of a compound into its elements is __________ that is evolved during…
  24. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy…
  25. Third law of thermodynamics is helpful in
  26. The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator…
  27. When a gas is subjected to adiabatic expansion, it gets cooled due to
  28. Ideal gas law is applicable at
  29. In polytropic process (PVn = constant), if n = 1; it means a/an __________ process.
  30. The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is