1.

Calculate the resonance energy of N_(2)O from the following data Delta H_(f) " of " N_(2)O= 82 kJ mol^(-1). Bond energies of N -= N, N = N, O = O and N = O bond are 946, 418 and 607 kJ mol^(-1) respectively

Answer»

`-88 kJ mol^(-1)`
`-170 kJ mol^(-1)`
`-82 kJ mol^(-1)`
`-258 kJ mol^(-1)`

Solution :`Delta H_(f) = Sigma` B.E of reaction - `Sigma B. E` of PRODUCTS
R. E = `Delta H_(f)` of OBSERVED - `Delta H` of calculated


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