Air expands adiabatically through a turbine from a pressure and temperature of \(180 \mathrm{psia}, 1600{ }^{\circ} \mathrm{R}\) to a pressure of \(14.7 \mathrm{psia}\). If the actual temperature change is \(85 \%\) of the ideal temperature change, determine the actual temperature of the expanded air and the actual enthalpy and entropy differences across the turbine.