Answered

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Sagot :

Explanation:

For reactants: BE 2CH2OH = 2*(3*414+351+460) = 4106kJ/mol

: BE 3O2 = 3*499 = 1497kJ/mol

For products: BE 2CO2 = 2*799 = 1598kJ/mol

: BE 4H2O = 4*2*460 = 3680kJ/mol

[tex]\begin{gathered} BE\text{ = Sum}_{reactants}\text{ - Sum}_{products} \\ \\ \text{ = 4106+1497-\lparen1598+3680\rparen} \\ \\ \text{ = 325kJ/mol} \end{gathered}[/tex]

Answer:

Bond energy is 325kJ/mol

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