Um gás monoatómico com comportamento ideal se submete ao ciclo representado no diagrama Pv do ciclo brayton
no sentido que se indica. O caminho do processo c - a é uma recta no diagrama PV. a) Calcule Q, W e ΔU para cada processo. b) Calcule Q, W e ΔU para um ciclo completo. c) Determine a eficiência do ciclo.

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?