Two identical (100), bare Si wafers were subjected to thermal oxidation at 950 oC for 40 minutes (A) one in dry oxygen and (B) another in wet oxidizing ambient. Calculate oxide thickness in these two cases and then explain the difference in the case calculated thicknesses would not be the same.

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.