Final answer:
Brake fluid is designed with a high boiling point to perform effectively in the high-temperature environment of a vehicle's braking system, differentiating it from motor oils which are formulated primarily to lubricate engine parts.
Step-by-step explanation:
The chemical composition of brake fluid is different from engine oil and is specifically designed for the hydraulic system of a vehicle's brakes. The key characteristic of brake fluid is that it has a high boiling point, which is critical for its performance in the high-temperature environment of a braking system. Unlike motor oils, which are largely hydrocarbon chains relying on London dispersion forces, brake fluids need to maintain their liquid state and should not vaporize under high temperatures as vapor bubbles could lead to brake failure.
Application: Just as motor oils need to maintain a certain viscosity under different temperatures, brake fluid must preserve its effectiveness at various temperatures. However, it is formulated to have a high boiling point rather than to lubricate engine parts, which is the primary function of motor oils. Therefore, the correct answer to the question is that brake fluid contains a chemical that c. Has a high boiling point.