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- Engineering
- If the bond dissociation energies of XY,X2,Y2(all diatomic molecules)are in the ratio 1:1:0.5 and enthalpy of formation of XY is -200 kJ/mol
the bond dissociation energy of X2 will be?...
1. 300 kJ/mol
2 200
3 400
4 800
Answers (1)
Bond Dissocisation Energy- Given energy to a compund/molecule for breaking it into it elements.
Enthalpy of formation- Energy released when a compound/molecule formed from its elements.
So,
If enthalpy of formation of XY is -200KJ/mol, then bond dissociation energy of XY bond is 200 KJ/mol.
Hence, bond dissociation energy of is also 200KJ/mol.
Option:(2) is right.
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