AQA Engineering Physics - Thermodynamics and Engines - Flashcards in A Level and IB Physics

1. Function is to extract as much energy as possible from the cold reservoir per joule of work done (12)
4. How well an engine converts chemical energy in the fuel into useful output power in the engine (7, 10)
7. A region in space containing a quantity of gas or vapour (6)
8. A change in which no heat passes into or out of the gas (9)
9. A change that occurs at a constant temperature (10)

2. The power expended in overcoming frictional forces between the moving parts of the engine and the viscous resistances of the lubricator oil and cooling water (8, 5)
3. A change from one state to another (7)
5. The percentage of the input work that is converted to useful output work (10)
6. A system in which the gas or vapour moves into, out of or through the region (4, 6)
10. Function is to supply as much energy to the hot reservoir as possible per joule of work done (4, 4)

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