Question

PLEASE HELP I DO NOT UNDERSTAND A THING. I WILL MARK BRAINILEST ANSWER. 4. During the testing of a new car engine, researchers found the engine produced 45,400 kJ of heat when run for an hour. The antifreeze system has a capacity of 8.45 L and is filled with an antifreeze mixture (specific heat of 8.65 J/g oC, density of 1.027 g/mL). The purpose of the antifreeze system is to help keep the engine cool, and in this experimental test, the engine temperature changed from 85oC to 101oC. During this hour long experiment, how many times did the cooling system turn over its volume of antifreeze to keep the engine temperature steady?

Answer 1

What it is saying is when you do the experiment how many times did the antifreeze system turn on. The rest of this is telling you how it works and what it does. You just simply over looked it. you can tell when it turns on because it will slow down just a little and then you can feel the radiation of the cold air and sometimes you might see the intake or the manifold will get a little discolored.