The chemical potential of a component 1 in a solution is given by, μi =

A. $$\left( {\frac{{\delta E}}{{\delta {n_1}}}} \right)T,P,{n_2},{n_3}...$$

B. $$\left( {\frac{{\delta H}}{{\delta {n_1}}}} \right)S,V,{n_2},{n_3}...$$

C. $$\left( {\frac{{\delta A}}{{\delta {n_1}}}} \right)T,V,{n_2},{n_3}...$$

D. $$\left( {\frac{{\delta G}}{{\delta {n_1}}}} \right)P,V,{n_2},{n_3}...$$

Answer: Option D