What is the work done and the net entropy change for the process that is a rigid container with a volume of 200 L and is divided into two equal volumes by a partition with both sides containing nitrogen, one side is at 200 kPa, 100 C and the other side at 2 Mpa, 200 C? The partition ruptures, and the nitrogen comes to a uniform state at 70 C. Assume the temperature of the surroundings is 20 C.