Ionic EquilibriumHard
Question
For pure water
Options
A.pH increases and pOH decreases with rise in temperature
B.pH decreases and pOH increases with rise in temperature
C.Both pH and pOH increase with rise in temperature
D.Both pH and pOH decrease with rise in temperature
Solution
On heating pure water the value of ionic product of water increases i.e., Kw = 10-14 at 25oC and at 100oC Kw = 10-12. Thus pH and pOH both becomes 6 at 100oC (pH and pOH = 7 at 25oC).
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