Calcule a mudança de energia interna, em , para a reação de formação de dois moles de a partir de , \ce{O2}\,_{(g)} e \ce{C\ell_2}\,_{(g)} a .
$\Delta\text{H}^{\circ}_f\ \ce{S}_{(g)}=277\text{ kJ}\cdot\text{mol}^{-1}$
$\Delta\text{H}_f^{\circ}\ \ce{SOC\ell2}_{(g)}=-210\text{ kJ}\cdot\text{mol}^{-1}$
$\Delta\text{H}_f^{\circ}\ \ce{SOC\ell2}_{(g)}=-210\text{ kJ}\cdot\text{mol}^{-1}$