Q6. Formaldehyde may be produced in the reaction between methanol and oxygen 2CH3OH(1) + O2(g) → 2HCHO(g) + 2H₂O(1): → 2
Posted: Wed Jun 08, 2022 9:12 am
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]