A heat engine absorbs energy of magnitude $\mid$Q_H$\mid$ from a high temperature reservoir, does work of magnitude $\mid$W $\mid$, and transferes energy of magnitude$\mid$Q_L$\mid$ as heat to a low temperature reservoir. Its efficiency is: A) $\mid$Q_H$\mid$/ $\mid$W $\mid$ B) $\mid$Q_L$\mid$/ $\mid$W $\mid$ C) $\mid$Q_H$\mid$/ $\mid$Q_L$\mid$ D) $\mid$W $\mid$/ $\mid$Q_H$\mid$ E) $\mid$W $\mid$/ $\mid$Q_L$\mid$

Question

Quizplus · Accepted Answer

The efficiency of a heat engine is defined as the ratio of the work done by the engine (W) to the heat absorbed from the high temperature reservoir (Q_H), which is given by W/Q_H.

A Heat Engine Absorbs Energy of Magnitude ∣\mid∣ QH ∣\mid∣ From a High Temperature Reservoir, Does Work of Magnitude

A Heat Engine Absorbs Energy of Magnitude $\mid$ Q_H $\mid$ From a High Temperature Reservoir, Does Work of Magnitude