steam flows through a nozzle at steady-state, entering the nozzle with a pressure of 0.5 MPa and a temperature of 673 K, where H = 3272 kJ/kg, and exiting at 0.1 MPa and 623 K, where H = 3176 kJ/kg, what is its exiting velocity (in m/s)? Assume that the heat loss is 10% of the change in kinetic energy.

A certain SSSF, adiabatic control volume with single inflow and outflow streams has mass flow rate m(dot) = 7.5 kg/sec, and a specific entropy increase from inflow to outflow, se-şi = + 1.6 kJ/(K*kg). Determine the time-rate-of-change, net, of the entropy of the universe (control volume plus surroundings).

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Q.3 A steel bar at a temperature of 500°C is dropped into an insulated bath containing 20 kg water at 120°C. The temperature of water and Steel reaches steadily to 150°C. If specific heat for water is 4 .180 kJ/kg-K, calculate the change in entropy of system.