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The bond energies of h-h x-x and h-x are 104kcal 38kcal and 138kcal respectively the e.n of x is

The bond energies of h-h x-x and h-x are 104kcal 38kcal and 138kcal respectively the e.n of x is

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Grade:11

1 Answers

Arun
25750 Points
4 years ago
 
Actual Bond energy \Delta = EH-X – \sqrtEH-H * EX-X
 = 101 – \sqrt104* 60
 = 22.01 Kcal/mol
 
Electro negativity deiiference is
XH – Xx  = 0.208 \sqrt\Delta
2.1 –  Xx  = 0.208 * \sqrt22.01
 Xx  = 1.12
hence electronegativity of unknown atom is 1.12

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