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The pH of pure water at 80^(@)C will be...

The pH of pure water at `80^(@)C` will be

A

`gt7`

B

`lt7`

C

`=7`

D

cannot be predicted

Text Solution

Verified by Experts

The correct Answer is:
B
The value of `K_(w)` increases with rise in temperature because dissociation of water is endothermic.
`:. `The value of pH of natural water decreases with rise in temperature.
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DINESH PUBLICATION-IONIC EQUILIBRIUM -Ionic Product of Water / pH-Concept
  1. The pH value of 0.001M aqueous solution of NaCI is

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  2. In 0.02 M solution of perchlorid acid (HClO(4)) at 298 K the sum of pH...

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  3. The pH of pure water at 80^(@)C will be

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  4. In a neutral solution

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  5. The addition of FeCl(3) to water

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  6. Assuming H(2)SO(4) to be completely ionised the pH of a 0.05M aqueous ...

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  7. The pH value of 0.02 M HCl is

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  8. At a certain temperature the value of pK(w) is 13.4 and the measured p...

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  9. Which of the following will have the highest pH?

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  10. Which of the following solutions will have pH = 10 at 298 K?

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  11. When 20 mL M//20 NaOH is added to 10 ml of M//10 HCl. The resulting ha...

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  12. Which of the following has maximum pH ?

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  13. Solution of equal pH and pOH is called

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  14. The pH of tears coming out of a person's eye is approximately

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  15. When aqueous solutions of two acids have same concentration of common ...

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  16. A solution of HCl contains 0.1920 g of an acid in 0.5 litre of a solut...

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  17. Equal volumes of two HCl solutions of pH=3 and pH=5 were mixed. What i...

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  18. pOH of H(2)O is 7.0 at 298K. If water is heated at 350 K, which of the...

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  19. Which of the following solution will have pOH equal to 11 at 298 K

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  20. The pH of a solution is 7.00. To this solution, sufficient base is add...

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