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Home  >>  JEEMAIN and AIPMT  >>  Chemistry  >>  Equilibrium
0 votes

The pH of pure water at $80^\circ C$ will be

(a) > 7

(b) < 7

(c) = 7

(d)  cannot be predicted.

Can you answer this question?
 
 

1 Answer

0 votes
Answer: < 7
 
The value of $K_w$ increases with rise in temperature because dissociation of water is endothermic.
$\therefore$ The value of pH of natural water decreases with rise in temperature.

 

answered Nov 23, 2013 by mosymeow_1
 

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