An insulated, rigid tank whose volume is 0.5 m³ is connected by a valve to a large vessel holding steam at 40 bar, 480°C. The tank is initially evacuated. The valve is opened only as long as required to fill the tank with steam to a pressure of 20 bar. Determine: (a) the final temperature of the steam in the tank, in °C, the final mass of the steam in the tank, in kg, and (b) the amount of entropy produced, in kJ/K. Part A Your answer is correct. Determine the final temperature of the steam in the tank, in °C, and the final mass of the steam in the tank, in kg. T₂ 660.25 °℃ 2.338 m₂ = kg

This Concepts revolves around thermodynamics and this practice example may need a PV diagram Directions are below

This question requires the use of the extracts from the tables of thermodynamic properties supplied. Ammonia, NH3, was once a commonly used refrigerant. In a particular (very old) refrigeration plant, ammonia has a pressure of 2.9 bar and a temperature of 40 °C. What would be the specific enthalpy of the ammonia under these conditions. 1433 kJ/kg a. b. 1552 kJ/kg 135 kJ/kg O d. 1622 kJ/kg O e. 1665 kJ/kg

Discuss all the laws of thermodynamics (Zeroth, first, second and third) and give their physical significance.