Air enters a steady state insulated turbine at 1600 k and 30 bar and leaves at 2.05 bar. the turbine has an isentropic efficiency of 90%. assume air behaves as an ideal gas with variable specific heats. neglect kinetic and potential energy effects. determine a. turbine exit temperature [k]. b. work output per mass of air flowing [kj/kg] c. rate of entropy production per unit mass [kj/kg k] in the turbine

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.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms