$(32$ points$)$ You are keen to analyze an organic Rankine Cycle using propanone $("$acetone$")$ as the working fluid. You know that the actual work of the turbine is $100kW$ at $60mo\frac{l}{s}.$ The fluid leaving the pump is at $50C$ and $600$kPa. The fluid entering the turbine is $120C$ and $600$kPa. If you ignore the pump work, estimate the thermal efficiency of this Rankine Cycle $($i$.$e$.,$ the heat engine efficiency$).$ Use the van der Waals EOS to model the system $($i$.$e$.$ with residuals$).$ Note the information below for acetone.

$\backslash$table$[[$Tb $($K$),$Tc $($K$),$Pc $($bar$),,\backslash$table$[[$AHvap$],[(k\frac{J}{m}ol)$