Q6. Formaldehyde may be produced in the reaction between methanol and oxygen 2CH3OH(1) + O2(g) → 2HCHO(g) + 2H₂O(1): → 2

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Q6 Formaldehyde May Be Produced In The Reaction Between Methanol And Oxygen 2ch3oh 1 O2 G 2hcho G 2h O 1 2 1 (334.12 KiB) Viewed 26 times

Q6. Formaldehyde may be produced in the reaction between methanol and oxygen 2CH3OH(1) + O2(g) → 2HCHO(g) + 2H₂O(1): → 2HCHO(g) + 2H₂O(1): AH₂ = −326.2 kJ The standard heat of combustion of hydrogen is H₂(g) + O₂(g) → H₂O(1): AH = -285.8 kJ/mol Use these heats of reaction and Hess's law to determine the standard heat of the direct decomposition of methanol to form formaldehyde: CH3OH(1)→ HCHO(g) + H₂(g) [5 marks]