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Write the relation between Delta H and D...

Write the relation between `Delta H` and `Delta U`.

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`Delta H = Delta U + Delta n. RT` where R is gas constant = 8.314 J/K mole T is the temperature in kelvin
`Delta n` = Number of moles of gaseous products - Number of moles of gaseous reactants.
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SUBHASH PUBLICATION-CHEMICAL THERMODYNAMICS-Two marks questions and answers :
  1. Mention the fractors affecting enthalpy of reaction.

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  2. State and illustrate Hesse's law.

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  3. Write the relation between Delta H and Delta U.

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  4. Explain heat of neutralisation with an example.

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  5. With example explain the term 'Heat of transition'.

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  6. Define heat (enthalpy) of transition.

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  7. What do you understand by the following statements ? enthalphy of fo...

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  8. What do you understand by the following statements ? enthalpy of com...

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  9. Give an example for the relation between Delta H and Delta U.

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  10. What are exothermic and endothermic chemical reactions?

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  11. State and explain the first law of thermochemistry.

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  12. Explain standard enthalpy of reaction.

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  13. Explain standard enthalpy of subslimation [Delta("sub")H^(@)).

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  14. Explain standard enthalpy of formation (Delta(f)H^(@)).

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  15. Explain standard enthalpy of combustion (Delta(c )H^(@)).

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  16. Explain bond dissociation enthalpy.

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  17. Justify the following statements : An exothermic reaction is alway...

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  18. Justify the following statements : The entropy of a substance incre...

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  19. Evaporation of water is an endothermic process but spontaneous. Explai...

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  20. Explain standard enthalpy of solution (Delta(sol)H^(@)).

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