Question

Why is ethanol used as antifreeze?
answer first....​

Answer 1

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The freezing point of ethanol is very low, i.e., -118°C . Thus, when a mixture of water and ethanol is cooled to a temperature of -50°C, it does not freeze. This mixture of water and alcohol is called anti-freeze and is used in radiators of motor cars in cold countries. It prevents water from freezing in radiators.

Answer 2

A mixture of alcohol and water is used instead of water in radiators of vehicles in cold countries. Water freezes at 0 degree Celsius to make its freezing point more lower, ethanol is added to water or any other substance ethanol helps in lowering a substance freezing point. That is why ethanol is used as antifreeze.