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At 298.2 K the relationship between enth...

At 298.2 K the relationship between enthalpy of bond dissociation (in kJ `mol^(-1)`) for hydrogen `(E_(H))`and its isotope, deuterium (ED), is best described by :

A

`E_(H)=(1)/(2) E_(D)`

B

`E_(H)=E_(D)`

C

`E_(H)~= E_(D) - 7 . 5`

D

`E_(H) = 2 E_(D)`

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