Estimate the AH reaction for the reaction shown below using data from table 9.3 (section 9.6.3)....

Question

Question

science chemistry

Answer 1

Answer #1

Solution:

The balanced reaction is given as,

2CH3OH + 3O2 = 4H2O + 2CO2

Thus,

ΔH = Enthalpies of Bond broken - enthalpies of Bond formed

ΔH = 6(C-H) + 2(C-O) + 2(O-H) + 6 (O=O) - 8 (O-H) - 4(C=O)

= (6 x 413 + 2 x 358 + 2 x 467 + 6 x 495) - ( 8 x 467 +4 x 745) kj/mol

= (7098) - ( 6716) kJ/mol

= 382 kJ/mol

Answer 2

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