What Is the Standard Enthalpy of Formation of Liquid Methylamine

question 68

Multiple Choice

What is the standard enthalpy of formation of liquid methylamine (CH₃NH₂) ?
C(s) + O₂(g) → CO₂(g) ; ΔH° = -393.5 kJ
2H₂O(l) → 2H₂(g) + O₂(g) ; ΔH° = 571.6 kJ
N₂(g) + O₂(g) → NO₂(g) ; ΔH° = 33.10 kJ
4CH₃NH₂(l) + 13O₂(g) → 4CO₂(g) + 4NO₂(g) + 10H₂O(l) ; ΔH° = -4110.4 kJ

• A)+3899.2 kJ/mol
• B)-3899.2 kJ/mol
• C)-47.3 kJ/mol
• D)+47.3 kJ/mol
• E)+3178.4 kJ

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