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The amount of heat required to decompose a compound into its elements is __________ the heat of formation of that compound from its elements.

A. Less than

B. More than

C. Same as

D. Not related to

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

You can do it
  1. A gas performs the maximum work, when it expands
  2. Absorption/evolution of heat during conversion of a substance from one allotropic form to another is…
  3. The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmanns…
  4. Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed…
  5. Pick out the wrong statement.
  6. The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components.…
  7. Free energy
  8. Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature…
  9. First law of thermodynamics is mathematically stated as
  10. The change in Gibbs free energy for vaporisation of a pure substance is
  11. If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of…
  12. As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine…
  13. Which of the following identities can be most easily used to verify steam table data for superheated…
  14. The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature…
  15. At absolute zero temperature, the __________ of the gas is zero.
  16. A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The…
  17. Choose the condition that must be specified in order to liquify CO2 (triple point for CO2 is - 57°C…
  18. Pick out the extensive property out of the following.
  19. All gases except __________ shows a cooling effect during throttling process at atmospheric temperature…
  20. Joule-Thomson effect i.e., a throttling process is a constant __________ process.
  21. Which of the following will increase the volume of a real gas by four times?
  22. An ideal liquid refrigerant should
  23. Maximum work that could be secured by expanding the gas over a given pressure range is the __________…
  24. Degree of freedom of the system ice-watervapour will be
  25. For a reversible process involving only pressure-volume work
  26. The internal energy of an ideal gas does not change in a reversible __________ process.
  27. The point at which all the three (solid, liquid and gas) phases co-exist, is known as the __________…
  28. Which is not a refrigerant?
  29. For an ideal liquid solution, which of the following is unity?
  30. Adiabatic compression of a saturated water vapour makes it