Modern car engines are cooled by liquid which circulates through the engine block and cylinder heads absorbing excess heat. This liquid is made up of half water and half antifreeze (commonly, ethylene glycol) which both keeps the water from freezing at low temperatures and raises its boiling point making heat transfer more efficient.
Which of the following is not a function of antifreeze?
raises the boiling point of water |
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aids heat transfer |
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lubricates the cooling system |
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keeps water from freezing at low temperatures |