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What do you understand by the terms 'compression' and 'rarefaction'? |
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Answer» Compression: the action of compressing or being compressed. the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition. Rarefaction: Rarefaction is the reduction of an item's density, the opposite of compression. Like compression, which can travel in waves, rarefaction waves also exist in nature. A common rarefaction wave is the area of low relative pressure following a shock wave. |
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