a) A piston-cylinder device contains a working fluid which undergoes an irreversible and non-adiabatic process. Will the following entropy of the fluid increase or decrease? i) Entropy changes of a system, AS Entropy generation, Sgen Briefly explain your answer. OUTM OUTM

The heat transferred in a thermodynamic cycle of system consisting of four processes are successively 0, 4, 6 and -4. The net change in the internal energy of the system will be

7: The heat transfer explicitly for the reversible steady flow process 1-2-3-4-5-3 is shown in the figure. a Calculate the total heat transfer in kJ by showing each heat transfer in each process explicitly if the mass of the body is 9 kg. b. If the heat transfer is 83 kJ during the process 3-4-5-3-2, determine the mass of the body. ec) 930 500 200 5 0.1 0.3 0.8 13

Thermodynamics I

I need the answer as soon as possible

answer is provided and mass flow rate is 4.2 kg/sec

Air in a horizontal cylinder enclosed by a sliding piston is compressed from 1 bar and 30°C to 9.11 bar and 200°C a) If the initial volume of the enclosed air is 0.179 m³ and the air surrounding the cylinder is at 30°C, determine i)The mass of air in the cylinder: ii)The work done iii)The heat transfer during the process b)Determine whether the compression process in the cylinder is reversible orirreversible using the second law of thermodynamics.

For a closed system, the difference between the heat added to the system and the work done by the system is equal to the change in Select one: O a. Internal Energy O b. Entropy O . Temperature O d. Enthalpy

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The first law of thermodynamic is dealing with the quality of energy Ture O False O