Apiston-cylinder containing steam at 700 kpa and 250°c undergoes a constant pressure process until the quality is 70%. determine per kilogram (a) the work done, (b) the heat transferred, (c) then change of internal energy, and (d) the change of enthalpy

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?

What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?