Cite the phases that are present and the phase compositions for the following alloys: (a) 90 wt% Zn-10 wt% Cu at 400C (750F) (b) 75 wt% Sn-25 wt% Pb at 175C (345F) (c) 55 wt% Ag-45 wt% Cu at 900C (1650F) (d) 30 wt% Pb-70 wt% Mg at 425C (795F) (e) 2.12 kg Zn and 1.88 kg Cu at 500C (930F) (f) 37 lbm Pb and 6.5 lbm Mg at 400C (750F) (g) 8.2 mol Ni and 4.3 mol Cu at 1250C (2280F) (h) 4.5 mol Sn and 0.45 mol Pb at 200C (390F)

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.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

What is the correct way to measure the overall length of a boat? measure from the tip of the bow to the highest point on the gunwale. measure from the tip of the bow in a straight line to the stern of the boat. measure from the tip of the bow in a straight line to the back seat. measure from port to starboard at the boat's widest point.