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negative Standard molar entropy of OH-

 
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Oct18-09, 10:04 AM   #1
 

negative Standard molar entropy of OH-

Hi there!

The Standard molar entropy of H+ and H2O are positive.
But OH- has a negative standard molar entropy.
Can somebody explain why the standard molar entropy of OH- is negative?

I just can't imagine how entropy could be negative.

Thanx in advance!
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