What is the correct order of thermal stabilit | vedclass

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Question

(C) The thermal stability of hydrogen halides $(HX)$ depends on the bond dissociation enthalpy of the $H-X$ bond. As the size of the halogen atom incr

Vedclass · Accepted Answer

$HF > HCl > HBr > HI$

Vedclass · Answer

(C) The thermal stability of hydrogen halides $(HX)$ depends on the bond dissociation enthalpy of the $H-X$ bond. As the size of the halogen atom increases from $F$ to $I$,the bond length increases,and the bond dissociation enthalpy decreases. Therefore,the order of bond strength is $HF > HCl > HBr > HI$. Consequently,the order of thermal stability is $HF > HCl > HBr > HI$.

What is the correct order of thermal stability for halogen acids?

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