Methanol burns in oxygen to form carbon dioxide and water. part a write a balanced equation for the combustion of methanol. write a balanced equation for the combustion of methanol. ch3oh (l) + 3o2 (g) →co2 (g) + 3h2o (g) ch3oh (l) + o2 (g) →co2 (g) + 2h2o (g) ch3oh (l) + 2o2 (g) →2co2 (g) + 4h2o (g) 2ch3oh (l) + 3o2 (g) →2co2 (g) + 4h2o (g) submitmy answersgive up part b calculate δh∘rxn at 25 ∘c. δh∘rxn = kj submitmy answersgive up part c calculate δs∘rxn at 25 ∘c. δs∘rxn = j/k submitmy answersgive up part d calculate δg∘rxn at 25 ∘c.

Part a)

Balanced equation:

2 CH₃OH (l) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O (g)

Part b)

ΔH for the reaction at 25°C

ΔH = Enthalpy change of products - Enthalpy change of reactants

= [ (2 mol) * (-393.509 kJ/mol) + (4 mol) * (-241.83 kJ/mol) ] - [ (2 mol) * (238.4 kJ/mol) + (3 mol) * (0 kJ/mol) ] = - 1277.5 kJ

Part c)

ΔS for the reaction at 25°C

ΔS = entropy change in products - entropy change in reactants

= [ (2 x 213.7) + (4 x 188.8) ] - [ (2 x 127.2) + (3 x 205.1) ] = 312.9 J K⁻¹

Part d)

ΔG for the reaction at 25°C

ΔG = ΔH - (T * ΔS)

= - 1277.5 x 10³ J - (298 x 312.9 J K⁻¹) = - 1370.7 kJ