Bond dissociation enthalpy of halogens

Started by ananya, March 10, 2021, 02:25:53 AM

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ananya

March 10, 2021, 02:25:53 AM
order of BDE of  halogens

uma

#1
March 14, 2021, 12:57:30 PM
As the size increases bond length increases and bond strength decreases and hence Bond enthalpy decreases. However F2 is exception due to its very small size its bond enthalpy is less than Cl2 due to repulsion between electrons.
So order is
Cl2 > F2 > Br2 > I2
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