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The equilibrium constants of a reaction ...

The equilibrium constants of a reaction at `27^(@)C` and aet `127^(@)C` are `1.6xx10^(-3)` and `7.6xx10^(-2)` respectively. Is the reaction exothermic or endothermic?

Text Solution

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Given, equilibrium constants
At `27^(@)C-1.6xx10^(-3)`
At `127^(@)C-7.6xx10^(-2)`
From the above values as the temperature raised euilibrium constant value increased. Here `DeltaH=+ve`
`:.` The reaction is endothermic.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CHEMICAL EQUILIBRIUM AND ACIDS BASES -VERY SHORT ANSWER QUESTIONS
  1. Can catalyst disturb the state of equilibrium?

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  2. On which factor, the equilibrium constant value changer?

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

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

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

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

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

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  8. What is Lewis acid? Give one example.

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  9. What is meant by ionic product of water?

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

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

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

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  13. All Bronsted bases are Lewis bases? Explain.

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

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  15. What is degree of ionisation?

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

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

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

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

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

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