please solve all steps

Air flows from a regulated pressure source at 100 bara through a 100 m long pipe into the atmosphere at latm pressure and 25°C. The pipe is new commercial steel pipe with an actual inside diameter of 0.5 cm. The pipe is horizontal. Neglect entrance and exit effects. a. Determine if the flow is choked for both the adiabatic and isothermal cases. b. Estimate the mass flow in kg/s for the adiabatic case. For air the molecular weight is 29.