Air, at P-2 bar and v, -0.07 m/kg is heated at constant pressure until reaching the...

 

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Air, at P-2 bar and v, -0.07 m/kg is heated at constant pressure until reaching the temperature T-104 C (state 2). The added heat is Q12-30 kJ/kg. Then undergoes an isothermal process and arrives at state 3 with a pressure P = 5.5 bar. The gas constant for air is R=287 J/kgK P(bar)4 Py-5.5 P-2 Ideal gas law: P x =RX 2 1. Assuming air as ideal gas and by the use of the ideal gas law, Find the specific volumes v2 and 3 2. Find the work exchanged by the system during the processes (1-2) 3. Find the work exchanged by the system during the process (2-3) (m/kg) 4. Calculate the total work for the two processes. This work, is it received or released by the system? 1 Air, at P-2 bar and v, -0.07 m/kg is heated at constant pressure until reaching the temperature T-104 C (state 2). The added heat is Q12-30 kJ/kg. Then undergoes an isothermal process and arrives at state 3 with a pressure P = 5.5 bar. The gas constant for air is R=287 J/kgK P(bar)4 Py-5.5 P-2 Ideal gas law: P x =RX 2 1. Assuming air as ideal gas and by the use of the ideal gas law, Find the specific volumes v2 and 3 2. Find the work exchanged by the system during the processes (1-2) 3. Find the work exchanged by the system during the process (2-3) (m/kg) 4. Calculate the total work for the two processes. This work, is it received or released by the system? 1