Abstract:
The effusion method with mass spectrometric analysis of the vapor composition of systems with
the initial compositions of $\text{V}$–$\text{MnF}_3$ and $\text{V}$–$\text{UF}_4$ are applied to determine $\Delta_rH^o_0$ (kJ/mol) for reactions $\text{MnF}_4 + \text{VF}_4 = \text{MnF}_3 + \text{VF}_5$ – $(–17.5 \pm 3.9)$ and $\text{VF}_4 + \text{UF}_4 = \text{VF}_3 + \text{UF}_5$ – $(\ge27.5)$.