Three engineering students submit their solutions to a design problem in which they were asked to design an engine that operates between temperatures 300 K and 500 K. The heat input/output and work done by their designs are shown in the following table:

Critique their designs. Are they acceptable or not? Is one better than the others? Explain.

Transcribed Image Text:

Wout Student Qu 1 250 J 140 J 110 J 250 J 170 J 90 J 3 250 J 160 J 90 J 2.