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Why is the enthalphy change for a chemic...

Why is the enthalphy change for a chemical reaction more important than internal energy change?

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UNITED BOOK HOUSE-QUESTION PAPER 2015-EXERCISE
  1. Explain the nature of the graphs of log P versus log V and log V versu...

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  2. Write the units of Vander Waals constants a and b.

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  3. Why is the enthalphy change for a chemical reaction more important tha...

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  4. What is meant by an isolated system in thermodynamics?

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  5. Find out the heat of formation of CH3COOH. Given that the heat of comb...

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  6. Balance the following chemical equation by ion by oxidation number of...

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  7. Give an example of a compound where the constituent element exhibit fr...

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  8. Although KHF2 is a stable compound, KHBr2 does not exist Explain why.

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  9. What happens when H2O2 is mixed with cold acidic potassium dichromate ...

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  10. Why is LiCl soluble in organic solvent?

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  11. Why are fumes seen when barium halides are kept in open air?

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  12. Alkali metals become opaque when they are kept open in air Why?

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  13. Write the basic principles of Solvey process.

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  14. Arrange the following compounds with ascending order of boiling point ...

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  15. BaSO4 is insoluble in water, but BeSO4 is soluble in water - Explain.

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  16. Why is CH3)3(c^o+)?

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  17. Indicate the electrophilic centre of the following compounds: CH3CHO,C...

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  18. (i) 4Nh3(g) + 5O2 (g) s iff 4NO (g) + 6H2O (g). Write the Kp and Kc va...

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  19. What is meant by solubility product?

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  20. pH of 0.2 mol L^-1 chloroacetic acid is 1.7. Find out the degree of di...

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