The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700F with a velocity of 86 ft/s and exits at 250 psia and 645F. Calculate the velocity at the exit of the nozzles. The specific heat of air at the average temperature of 672.5F is c_p = 0.253 Btu/lbmR.

The velocity at the exit of the nozzles is ft/s.