Entropía de Sustancias Puras a Temperatura T

$$S_T=\int_0^{Tf}\frac{Cp(s)}{T}dT+\frac{\Delta H_f}{T_f}+\int_{Tf}^{Teb}\frac{Cp(1)}{T}dT+\frac{\Delta Hv}{Teb}+ \int_{Teb}^{T}\frac{Cp(g)}{T}dT$$