The relation between $\Delta H$ and $\Delta U$ for the reaction $2 SO_{3(g)} \longrightarrow 2 SO_{2(g)} + O_{2(g)}$ is:
- A$\Delta H - \Delta U = 2 RT$
- B$\Delta H - \Delta U = RT$
- C$\Delta H + \Delta U = -RT$
- D$\Delta H + \Delta U = RT$
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