A small, high-speed turbine operating on compressed air produces a power output of 0.1 hp. The inlet state is 120 psi, 200°F, and the exit state is 14.7 psi, - 20 F. Assuming the velocities to be low and the process to be adiabatic, find the required mass flow rate of air through the turbine assuming a) constant specific heat and b) variable specific heat.