What is the Difference Between Antifreeze and Water?

[GabriellaLynn]

Antifreeze and water differ in their properties: antifreeze has the characteristics of being freeze-resistant and high-temperature resistant, while water has no such properties. The full name of antifreeze is antifreeze coolant, which serves two purposes. First, when the vehicle is not running, it prevents freezing because the antifreeze is inside the engine block. If the liquid turns into a solid, its volume expands, which can crack the engine block. The second purpose is to cool the engine after the vehicle starts, preventing the engine from overheating and causing damage. Antifreeze has a lower freezing point than water, better freeze resistance, a higher boiling point, and superior evaporation resistance compared to water. When the engine is running, it operates at high temperatures. If water were used for cooling, since its boiling point is 100 degrees Celsius, it would evaporate into steam when the temperature reaches 100 degrees. The water level would gradually decrease, and once all the water evaporates, it would no longer be able to cool the engine, leading to engine damage.