The value of of is –853.5 kJ mol. for the reaction: , is –76.00 kJ. The value of of is — Thermodynamics and Thermochemistry Chemistry Question

Question

The value of $\Delta_f H^\circ$ of $\text{U}_3\text{O}_8\text{(s)}$ is –853.5 kJ mol$^{-1}$. $\Delta H^\circ$ for the reaction: $3\text{UO}_2\text{(s)} + \text{O}_2\text{(g)} \to \text{U}_3\text{O}_8\text{(s)}$, is –76.00 kJ. The value of $\Delta_f H^\circ$ of $\text{UO}_2\text{(s)}$ is