Air flows from a large tank at \(p=650 \mathrm{kPa}\) absolute, \(T=550^{\circ} \mathrm{C}\) through a converging nozzle, with a throat area of \(600 \mathrm{~mm}^{2}\), and discharges to the atmosphere. Determine the mass rate of flow for isentropic flow through the nozzle.