Translations:Thermodynamic and Mechanical Study/484/fr

$\frac{V_j}{\gamma -1}{\dot{P}}_{𝒞}={\dot{Q}}_j+\sum _{\mathrm{i}\mathrm{n}}\dot{m}{C}_p{T}_u-\sum _{\mathrm{o}\mathrm{u}\mathrm{t}}\dot{m}{C}_p{T}_j.$