C1 and C2 represent the specific heat of a liquid and its saturated vapour where- as L is latent heat of vaporization. (T is the temperature) The correct option is
1
\(C_2-C_1=\frac{d L}{d T}-\frac{L}{T}\)
2
\(C_1-C_2=\frac{d L}{d T}+\frac{L}{T}\)
3
\(C_1+C_2=\frac{d L}{d T}-\frac{L}{T}\)
4
\(C_1+C_2=\frac{d L}{d T}+\frac{L}{T}\)