Chapter 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - 5-7 Enthalpy Calculations - Review & Check for Section 5-7 - Page 2132: 2

C

$\begin{smallmatrix} CH_3OH(l)+3/2\ O_2(g)\rightarrow CO_2(g)+2\ H_2O(l)&1/2\Delta H_1\\ CO(g)+1/2\ O_2(g)\rightarrow CO_2(g)&1/2\Delta H_3\\ 2\ CO_2(g)+2\ H_2O(l)\rightarrow CH_3CO_2H(l)+2\ O_2(g)&-\Delta H_2\\ \hline\\ CH_3OH(l)+CO(g)\rightarrow CH_3CO_2H(l)&1/2\Delta H_1+1/2\Delta H_3-\Delta H_2\\ \end{smallmatrix}$