Ask Question
6 August, 15:02

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.

+1
Answers (1)
  1. 6 August, 15:58
    0
    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
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Methanol burns in oxygen to form carbon dioxide and water. part a write a balanced equation for the combustion of methanol. write a ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers