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pOH water is 7.0at 298 K. If water is he...

`pOH` water is `7.0at 298 K`. If water is heated to `350K`, which of the following should be ture?

A

`pOH` will decrease.

B

`pOH` will increase.

C

`pOH` will remain `7.0`.

D

concentration of `H^(+)` ions will increase but that of `OH^(-)` will decrease.

Text Solution

Verified by Experts

The correct Answer is:
A
`[OH^(-)]=sqrt(K_(w))` in pure water.
So as temperature increases `K_(w)` decreases `implies [OH^(-)]` decreases.
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Knowledge Check

  • pH of water is 7.0 at 25^(@)C . If water is heated to 80^(@)C

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