Equilibrium Question 895

Question: Which relation is wrong

Options:

A) 10pH+10pOH=1014

B) pHα1[H+]

C) Kwα,T

D) dissociation constant of water K=1.8×1016

Show Answer

Answer:

Correct Answer: A

Solution:

[a] 10pH×10pOH=10Kw

[b] as [H+] increases, pH decreases, [c] since ionization of water is endothermic in nature hence increase in temperature increases Kw

[d] Ka of H2O=[H+][OH][H2O]=101455.55=1.8×1016



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