Q5 0.5 kg of air (ideal gas) executes a Carnot power cycle having a thermal efficiency...

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Q5 0.5 kg of air (ideal gas) executes a Carnot power cycle having a thermal efficiency of 50 per cent. The heat transfer to the air during the isothermal expansion is 40 kJ. At the beginning of the isothermal expansion the pressure is 7 bar and the volume is 0.12 m³. Determine : (i) The maximum and minimum temperatures for the cycle in K ; (ii) The volume at the end of isothermal expansion in m³ ; (iii) The heat transfer for each of the four processes in kJ. For air Cv = 0.721 kJ/kg K, and Cp = 1.008 kJ/kg K [7] %3D %3D Q5 0.5 kg of air (ideal gas) executes a Carnot power cycle having a thermal efficiency of 50 per cent. The heat transfer to the air during the isothermal expansion is 40 kJ. At the beginning of the isothermal expansion the pressure is 7 bar and the volume is 0.12 m³. Determine : (i) The maximum and minimum temperatures for the cycle in K ; (ii) The volume at the end of isothermal expansion in m³ ; (iii) The heat transfer for each of the four processes in kJ. For air Cv = 0.721 kJ/kg K, and Cp = 1.008 kJ/kg K [7] %3D %3D

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