The four properties of a system viz. P, V, T, S are related by __________ equation.

Answer: Option C

The relation between the state properties is given by Maxwell’s equation which relates the state properties the relation between the given $$P,V,T,S$$   is $${\left(\frac{\partial T}{\partial V}\right)}_S={\left(\frac{\partial P}{\partial S}\right)}_V.$$