a
\(C{{O}_{(g)}}+\frac{1}{2}{{O}_{2(g)}}\to C{{O}_{2(g)}}\,\,\,\,\,\therefore \,\,\,\,\Delta {{n}_{(g)}}\,\,=\,\,{{n}_{p}}-{{n}_{r}}\,=\,1\,-\frac{3}{2}\,\,=\,\,-0.5\)
હવે \(\Delta H = \Delta U+\Delta {{n}_{g}}RT\) સૂત્રનો ઉપયોગ કરતાં \(\Delta H = -285.4\) કિલો જૂલ મળે