The energy added to a heat engine is converted intoMultiple choice question.external work only.work and waste heat.potential energy.waste heat only.
Question
The energy added to a heat engine is converted intoMultiple choice question.external work only.work and waste heat.potential energy.waste heat only.
Solution
The correct answer is "work and waste heat."
In a heat engine, energy is added (usually in the form of heat), and the engine does work (like moving a car), but not all of the energy can be converted into work. Some of it is always lost as waste heat, due to the second law of thermodynamics. This is why no heat engine can be 100% efficient.
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