Translations:Thermodynamic and Mechanical Study/501/en

${\dot{P}}_{𝒞}=\frac{-\gamma R{T}_{\mathrm{o}\mathrm{u}\mathrm{t}}{\dot{m}}_{\mathrm{e}\mathrm{x}\mathrm{t}}+(\gamma -1){\dot{Q}}_{𝒞}-\gamma P_{𝒞}{\dot{V}}_{𝒞}}{V_{𝒞}},$