Chemistry - Thermochemistry Question with Solution | TestHub

Methanol can be prepared synthetically by heating carbon monoxide and hydrogen gases under pressure in the presence of a catalyst. $$\begin{array}{rl}& \mathrm{C}\text{ (graphite) }+1/2{\mathrm{O}}_2\to {\mathrm{CO}}_{(g)}\\ & {\mathrm{CO}}_{(g)}+2{\mathrm{H}}_{2(g)}\to {\mathrm{CH}}_3\mathrm{OH}\end{array}$$ $\overline{\mathrm{C}\text{ (graphite) }+1/2{\mathrm{O}}_{2(g)}+2{\mathrm{H}}_{2(g)}\to {\mathrm{CH}}_3{\mathrm{OH}}_{(l)}}$