Physics A-Level
Heat engine
What Heat engine means in Physics A-Level, as defined for AQA.
Definition of Heat engine
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Reference: AQA
It converts thermal energy into useful work, but only if thermal energy flows from a hot source to a cold sink.
Topics that use Heat engine
- Second Law and engines (A-level only) (AQA A-Level)
Related terms
- Second law of thermodynamics
- Source
- Heat engine efficiency
- Hot and cold reservoirs
- Kelvin–Planck statement
- Sink
Using Heat engine in the exam
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