February 26, 2017

Homework Help: Chem

Posted by Dr BOB plz ANSWER on Wednesday, November 12, 2008 at 11:27pm.

Bond enthalpy is the energy required to break a mole of a certain type of bond.

O=O = 495 kj/mol
S-F = 327 kj/mol
S=O = 523 kj/mol

Use average bond enthalpies to estimate the enthalpy delta H (rxn) of the following reaction:

2SF4 + O2 ---- 2OSF4

Express your answer numerically in kilojoules.

is answer 103 KJ

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