Question

Which colligative property is employed when coolant is added to a car's radiator to keep it from overheating?

Answer 1

freezing-point depression and boiling-point elevation, An antifreeze mixture (antifreeze/coolant with water) is used to achieve freezing-point depression for cold environments and also achieves boiling-point elevation to allow higher coolant temperature.

Answer 2

This keeps the water in your radiator from freezing in the winter and from overheating and boiling out in the hot months.