Think a closed, isolated container, which has been divided into two sections by a partition. One section has an inert gas at its higher pressure and temperature, while the other is a vacuum. The partition is suddenly taken away, so that the gas can expand and the entire container can be filled. $($Consider the gas as an ideal gas.$)(20$ points$)$ a$)$ Explain the procedure that happens after removing the partition. Describe the transformation of the system with respect to temperature, pressure, and composition. $(10$ points$)$ b$)$ Under what conditions will the system eventually approach thermodynamic equilibrium? Explain and interpret the thermodynamic equilibrium condition considering the other concepts. $(10$ points$)$