For the following Assertion and Reason, the correct option is:
Assertion: The pH of water increases with increases in temperature.
Reason: The dissociation of water into $H^{+}$ and $O H^{-}$ is an exothermic reaction.

Question

For the following Assertion and Reason, the correct option is:
Assertion: The pH of water increases with increases in temperature.
Reason: The dissociation of water into

H^{+}

and

O H^{-}

is an exothermic reaction.

Accepted Answer

Correct answer: D. (d) H_2O (l ) ⇌H_ ( qq )^++ OH_ ( qq )^- For ionization of H_2O : H>O ⇒ ENDOTHERMIC On temperature increase reaction shifts forward ⇒ both (H^+ )and ( OH^- )increase ⇒ pH \& pOH decreases.

$For the following Assertion and Reason, the correct option is: Assertion: The pH of water increases with increases in temperature. Reason: The dissociation of water into H^{+} and O H^{-} is an exothermic reaction.$

Solution

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