Which relation is the basis of Mollier Diagram?
1
\({C_p} = {\left( {\frac{{\partial h}}{{\partial T}}} \right)_P}\)
2
\({C_v} = {\left( {\frac{{\partial Q}}{{\partial T}}} \right)_v}\)
3
Cp - Cv = R
4
\(T = {\left( {\frac{{\partial h}}{{\partial S}}} \right)_P}\)