The diagram below is a schematic of a heat engine. The three quantities, Q_H, Q_L, and W are represented, respectively, by

Question

Quizplus · Accepted Answer

Q_H represents the heat supplied to the system, which occurs at the high temperature reservoir (HS) and is transferred to the system at point 1 (U1). This is represented by 1 in the diagram. Q_L represents the heat released by the system, which occurs at the low temperature reservoir (LS) and is transferred out of the system at point 1 (U1). This is represented by 3 in the diagram. W represents the work output of the system, which occurs between points 1 (U1) and 0 (B0) on the diagram. This is represented by 2 in the diagram. Therefore, the correct order of the three quantities is 1, 3, 2 or B.

The Diagram Below Is a Schematic of a Heat Engine