Question

A says that filling a vehicle's cooling system with pure coolant provides the maximum protection against freezing.

B says that pure water absorbs heat better than pure coolant

-A
-B
-Both
-Neither

Answer 1

A mixture of water and antifreeze is used in vehicle cooling systems to prevent freezing and efficiently absorb heat, balancing the benefits of each substance.

Step-by-step explanation:

When it comes to vehicle cooling systems, antifreeze plays a crucial role in both preventing freezing and raising the boiling point. A combination of water and antifreeze is typically used to create an optimal coolant for automotive engines. On one hand, A suggests that using pure coolant provides the best protection against freezing, which can be true for lowering the freezing point.

However, B argues that pure water is a better absorber of heat than pure coolant. This is because water generally has a high specific heat capacity, allowing it to absorb and transfer heat efficiently within an engine's cooling system. Nonetheless, in practice, a mixture of water and antifreeze (such as propylene glycol or ethylene glycol) is used to balance both the lowering of the freezing point and the efficient absorption of heat.