A Certain Heat Engine Extracts $1.30 \mathrm {~kJ}$ Of Heat from a Hot Temperature Reservoir and Discharges

question 5

Multiple Choice

A certain heat engine extracts $1.30 \mathrm {~kJ}$ of heat from a hot temperature reservoir and discharges $0.70$ $\mathrm { kJ }$ of heat to a cold temperature reservoir. What is the efficiency of this engine?

• A) \(13 \%\)
• B) \(27 \%\)
• C) \(54 \%\)
• D) \(86 \%\)
• E) \(46 \%\)

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