Using Energy Concepts and the Ideal Gas Model Two kg of nitrogen (N2) gas is cont...

Using Energy Concepts and the Ideal Gas Model

Two kg of nitrogen (N₂) gas is contained in a closed, rigid tank surrounded by a 10-kg water bath, as shown in Fig. P3.133. Data for the initial states of the nitrogen and water are shown on the figure. The entire unit is well insulated, and the nitrogen and water interact until thermal equilibrium is achieved. The measured final temperature is 34.18C. The water can be modeled as an incompressible substance, with c = 4.179 kJ/kg . K, and the nitrogen is an ideal gas with constant c_v. From the measured data, determine the average value of the specific heat c_v, in kJ/kg . K.