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Define and explain the bond enthalpy (De...

Define and explain the bond enthalpy `(Delta_("bond")H^(theta))`.

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The bond dissociation enthalpy is the change in enthalpy when one mole of covalent bonds of a gaseous covalent compound is broken to form products in the gas phase.
In that case of diatomic molecules like `H_(2),HCl` etc., the enthalpy of atomization also the bond dissociation enthalpy. In the case of polyatomic molecules, bond dissociation enthalpy is different for different bonds within the same molecule.
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Define and explain the enthalpy of combustion (Delta_(c)H^(theta)) .

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VGS PUBLICATION-BRILLIANT-THERMODYNAMICS-SHORT ANSWER QUESTIONS
  1. Define and explain the enthalpy of combustion (Delta(c)H^(theta)).

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  2. Define and explain the enthalpy of atomisation(Delta(a)H^(theta)).

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  3. Define and explain the bond enthalpy (Delta("bond")H^(theta)).

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  4. What is the bond enthalpy of C-H bond of CH(4)?

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  5. Define heat of solution (Delta("sol")H^(theta)) and heat of dilution.

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  6. Define ionisation enthalpy and electron affinity.

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  7. Explain the spontaneity of a process.

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  8. Is decrease in enthalpy a criterion for spontaneity? Explain.

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  9. What is entropy? Explain with examples.

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  10. Is increases in entropy a criterion for spontaneity? Explain.

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  11. Can DeltaU and DeltaS discriminate between irreversible and reversible...

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  12. In which of the following process entropy increases? a) A liquid ev...

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  13. For the oxidation of iron 4Fc((s))+3O(2(g))to2Fe((2))O(3(s)), the ...

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  14. Which formulate in the following are correct? a) G=H-TS b) DeltaG(...

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  15. Calculate Delta(r)G^(theta) for conversion of oxygen to ozone (3)/(2)O...

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  16. State the second law of thermodynamics and explain it.

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  17. State the third law of thermodynamics.

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  18. What is entropy? Explain with examples.

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  19. Explain spontaneity of a process in terms of Gibbs energy.

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  20. The sign and magnitude of Gibbs energy change of a chemical process te...

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