A rigid insulated tank at zero pressure is separated from a

A rigid, insulated tank at zero pressure is separated from a line supplying Neon gas at 300 kPa and 127 C by a valve. The valve is opened and Neon flows into the tank until the pressure reaches the line pressure and then the valve is closed. What is the final temperature of the Neon in the tank? Assume that the tank inlet flow conditions are uniform, neglect PE and KE changes and recall the for Neon, Cp/Cv = 1.67

Solution

T_f= k T_i                                                      k= Cp/Cv = 1.67

   = 1.67 x 400

   = 668k