One kmol of argon at 300 k is initially confined to one side of a rigid, insulated container divided into equal volumes of 0.2 m3 by a partition.
the other side is initially evacuated. the partition is removed and the argon expands to fill the entire container.

using the van der waals equation of state, determine the final temperature of the argon, in k.

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?

Plot schematically the tensile stress versus strain curves for a typical thermoplastic material at a temperature below its glass transition temperature (tg and at a temperature above its tg, respectively. do the same for a typical thermosetting material. list in a table any differences or similarities between the two materials at t> tg and t < tg, respectively, and relate them to the structures of the two types of polymers