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For the auto-ionization of water at 25^(...

For the auto-ionization of water at `25^(@)C, H_(2)O(l)iff H^(+)(aq)+OH^(-)` (aq) equilibrium constant is `10^(-14)`.
What is `DeltaG^(@)` for the process?

A

`8 xx 10^(4)` J

B

`3.5 xx 10^(4)`J

C

`10^(4)` J

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Using `-Delta_(r)G^(@) =RT lnl K_(eq) rArr -Delta_(r)G^(@) = 8.314 xx 298 ln 10^(-14) = 7.99 xx 10^(4)` J
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