B$.$E$.($Chemical$)2^{nd}$ Year

Derive the following using Maxwell's relations:

${}_S=-\frac{VT{}^2}{C_P},$ where ${}_S=-(\frac{1}{V})(\frac{\text{d}\text{e}\text{l}\text{V}}{\text{d}\text{e}\text{l}\text{P}}{)}_S$