(2)True/false: The fugacity coefficient (γ) is less than zero when a real gas at its Boyle temperature. f= γ(P, T )P

Problem 2 A turbine operating on compressed air in a steady state produces 1 kW of work. The inlet and exit conditions are 300 kPa, 300 K and 200 kPa, 250K, respectively. Find the required mass flow rate of air. Assuming the process is adiabatic and the changes of kinetic and potential energy are ignored.