$(4.)$ Steam enters an adiabatic turbine at $70$ bar and $873K$ and leaves at a pressure of $4$ bar. Estimate the maximum amount of work that can be delivered by the turbine i$)$ using P$-$R EoS to estimate the $P-V-T$ properties, ii$)$ steam tables, iii$)$ based on your results comment on the estimation performance of the EoS for steam. Can we solve this problem by using a python code?