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  1. With increase in temperature, the internal energy of a substance
  2. It is desired to bring about a certain change in the state of a system by performing work on the system…
  3. An isentropic process is carried out at constant
  4. Requisites of a reversible process is that the
  5. Joule-Thomson co-efficient is defined as
  6. For an exothermic reaction
  7. Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the…
  8. Pick out the correct statement:
  9. Which of the following decreases with increase in pressure?
  10. In case of the decomposition of hydroiodic acid (2HI H2 + I2), addition of H2 (at equilibrium condition)…
  11. The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 >…
  12. A refrigerator works on the principle of __________ law of thermodynamics.
  13. (∂T/∂P)H is the mathematical expression for
  14. Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.
  15. The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial…
  16. Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg…
  17. Translational kinetic energy of molecules of an ideal gas is proportional to (where, T = absolute temperature…
  18. Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system…
  19. The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmanns…
  20. The gas law (PV = RT) is true for an __________ change.
  21. High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which…
  22. Claude's liquefaction process employs the cooling of gases by
  23. As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine…
  24. Critical solution temperature (or the consolute temperature) for partially miscible liquids (e.g., phenol-water)…
  25. At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.
  26. Degrees of freedom at triple point will be
  27. In the reaction, H2 +I2 2HI, addition of an inert gas will
  28. At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy…
  29. Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid…
  30. Heating of water under atmospheric pressure is an __________ process.