"The following data apply to 25oC and 100kPa. Assume the specific volume Vs, and Kt are constant with respect to pressure changes.
delta G(graph) = 0
delta G (diamond) = +2.8678
Vs (graph) = 0.444 (cm^3 / g)
Vs (diamond) = 0.284
Kt (graph) = 3.04 x 10^(-8) kPa
Kt (diamond) = 0.187 x 10^(-8)