1.

The bond dissociation energy depends upon the nature of the bond and nature of the molecule. If any molecule more than 1 bonds of similar nature are present then the bond energy reported is the average bond energy. Heat evolved when 0.75 mol of molten aluminium at its melting point of 658^(@)C is solidified and cooled to 25^(@)C. The enthalpy of fusion of aluminium is 76.8 "cal" g^(-1) and C_(P)= 5.8 "cal" mol^(-1) ""^(0)C

Answer»

`-4.3` KCAL
4.3 kcal
`-1.199k` cal
1.199kcal

Answer :A


Discussion

No Comment Found