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Fluorine has a low electron gain enthalpy compared to chlorine, yet it is a more powerful oxidant. Explain why?

Fluorine has a low electron gain enthalpy compared to chlorine, yet it is a more powerful oxidant. Explain why?

Grade:upto college level

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
Main reason is the very high hydration enthalpy of the fluoride ion. That is because the ion is very small. There is a very strong attraction between the fluoride ions and water molecules. The stronger the attraction, the more heat is evolved when the hydrated ions are formed.

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