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H(2)O+H(2)OhArrH(3)O^(+)+OH^(-) The io...

`H_(2)O+H_(2)OhArrH_(3)O^(+)+OH^(-)`
The ionic product of water is `1xx10^(-14)` at `25^(@)C` and `3.0xx10^(-14)` at `40^(@)C`
is the above process endothermic or exothermic?

Text Solution

Verified by Experts

Given reaction
`H_(2)O+H_(2)O hArr H_(3)O^(+)+OH^(-)`
`K_(w) "at" 25^(@)C-1xx10^(-14) "mole"//"lit"^(2)`
`K_(w) "at" 40^(@)C-3xxx10^(-14) "mole"//"lit"^(2)`.
The above reaction is endothermic reaction because `K _(w)`value increases with increase of temperature.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CHEMICAL EQUILIBRIUM AND ACIDS BASES -VERY SHORT ANSWER QUESTIONS
  1. On which factor, the equilibrium constant value changer?

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  2. The equilibrium constants of a reaction at 27^(@)C and aet 127^(@)C ar...

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  3. What is the effect of temperature on a system at equilibrium?

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  4. For an exothermic reaction, what happens to the equilibrium constant i...

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  5. What kind of equilibrium constant can be calculated from Delta G^(@) v...

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  6. What is a Bronsted base? Give one example.

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  7. What is Lewis acid? Give one example.

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  8. What is meant by ionic product of water?

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  9. What is the value of K(w) ? What are its units?

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  10. What is the effect of temperature on ionic product of water?

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  11. H(2)O+H(2)OhArrH(3)O^(+)+OH^(-) The ionic product of water is 1xx10^...

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  12. All Bronsted bases are Lewis bases? Explain.

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  13. All Lewis acids are not Bronsted acids. Why?

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  14. What is degree of ionisation?

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  15. What is the measure of strength of an acid and base?

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  16. Give two examples of salts whose aqueous solutions are basic.

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  17. Give two examples of salts whose aqueous salts are acidic.

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  18. What equation is used calculating the pH of an acid buffer?

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  19. Phosphoric acid (H(3)PO(4)) have three ionization constants K(a(1)),K(...

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  20. Ice melts slowly at high altitudes. Explain Why?

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