1.

Calculate DeltaH of the reaction H - underset(Cl) underset(|) overset(H) overset(|) (C ) - Cl(g)rarr C(g) +2H(g) + 2Cl(g) Theaverage bond energies of C-H bond and C-Cl bond are 416kJ and 325 kJ mol^(-1) respectively.

Answer»

Solution :In the given REACTION, TWO MOLES of C-H BOND and two molesof C-Cl bond are broken.
Hence energy absorbed `= 2 xx 416 + 2 xx 325`
`= 1485kJ`


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