The following data are given for three heat engines operating in separate cycles:…

PHYSICS · Multi-part · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

The following data are given for three heat engines operating in separate cycles: Engine P:

Q_H = 800\,\text{J}

Q_C = 400\,\text{J}

Engine Q:

Q_H = 600\,\text{J}

Q_C = 200\,\text{J}

Engine R:

Q_H = 1000\,\text{J}

Q_C = 500\,\text{J}

(i) Calculate the efficiency of each engine. (ii) Rank the engines in order of decreasing efficiency.