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5. Methanol gas combustion is represented with the following reaction 2 H3C-O-H(g) + 3 0=0(g) 20=C=O(g) + 4H-O-H(g) Calculate
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Answer #1

CH3-O-H + 3/2 O=O ----> O=C=O + 2 H-O-H

∆H° = Total Bond energy of reactants - total bond energy of products

=[ 3×414+464+360+3/2(498)]-[2×736+4×464)

= -515 kJ/mol

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