Which of the Following Reactions Corresponds to the Thermochemical Equation

question 19

Multiple Choice

Which of the following reactions corresponds to the thermochemical equation for the standard enthalpy of formation of N,N-diethyl-m-toluamide,C₁₂H₁₇NO(l) ,the active ingredient in some insect repellents?

• A)12C(l)+ 17H(l)+ N(l)+ O(l)→ C₁₂H₁₇NO(l)
• B)12C(g)+ 17H(g)+ N(g)+ O(g)→ C₁₂H₁₇NO(g)
• C)12C(s)+ 17H(g)+ N(g)+ O(g)→ C₁₂H₁₇NO(l)
• D)12C(s)+ H₂(g)+ N₂(g)+ O₂(g)→ C₁₂H₁₇NO(l)
• E)12C(g)+ 17H(g)+ N(g)+ O(g)→ C₁₂H₁₇NO(l)

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