8.7 Diffuser A jet flies at an altitude of 10 km, where the pressure is 0.32 bar, and the temperature is-44C. The jet flies with a velocity of 880 km/h, and its diffuser has an inlet cross section of 1.5 m. Assume negligible diffuser exit velocity, adiabatic reversible flow, and consider air as ideal gas with constant specific heats, R = 0.287 across the diffuser. k] = , Cp 7 - R. Determine the mass flow into the engine, and the pressure increase 2 kgK'