Question

What is the $△H$ of the reaction to form $C{O}_2$ from $CO+O_2$ in the given energy profile diagram?

• A. $-94.0kcal$
• B. $-26.4kcal$
• C. $-67.6kcal$
• D. $-100.20Kcal$
• E. $-105.45Kcal$

Answer 1

Answer: (C)

$-67.6kcal$

Our target reaction here is,

$CO+\frac{1}{2}{O}_2\to C{O}_2;(\Delta H=?)$

The enthalpy of the above reaction is clearly stated as $-67.6kcal$