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Define Hess's law of constant heat summa...

Define Hess's law of constant heat summation.

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MODERN PUBLICATION-THERMODYNAMICS-Revision Exercise (Very short answer questions)
  1. The standard enthalpy of formation of sulphur dioxide (SO(2)) is -296....

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  2. Define enthalpy of fusion.

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  3. Define Hess's law of constant heat summation.

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  4. What is meant by bond dissociation enthalpy?

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  5. Ammonia is prepared as 3H(2)(g) + N(2)(g) to 2NH(3)(g) What should...

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  6. State first law of thermodynamics.Write it mathematical expression.

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  7. Why are we usually concerned with changes in enthalpy than changes in ...

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  8. Name the two criteria which must be met for a process to be spontaneou...

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  9. Give an example of a chemical reaction for which DeltaH^(@) gt DeltaU^...

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  10. Why do we feel cold on touching a block of ice?

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  11. Delta(f)H^(@) of Fe(2)O(3) is -825 kJ. What is the enthalpy change for...

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  12. The standard enthalpies of formation of three substances A, B and C ar...

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  13. Define molar heat capacity and specific heat capacity.

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  14. What are the units of entropy and free energy?

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  15. Explain the state of a reaction when DeltaG =0.

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  16. Write Gibbs Helmholtz equation giving meanings of the symbols used.

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  17. What is the sign of DeltaS for (i) evaporation of liquid water ? (...

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  18. When an ideal gas expands in vaccum, there is neither absorption nor e...

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  19. In a process, a system does 145 J of work on its surroundings while 85...

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  20. How is free energy change related to equilibrium constant for the reac...

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