According to Most Car Mechanics, Plain Water Is the Best

question 19

Multiple Choice

According to most car mechanics, plain water is the best coolant to use in an engine provided the engine is not being exposed to freezing temperatures.If the car is subject to freezing temperatures then a mixture of water and ethylene glycol (antifreeze) is recommended but it does not cool as efficiently as plain water.Why would ethylene glycol reduce the cooling efficiency of water?

• A)Hydrogen bonds in water allow high levels of heat absorption and a large increase in temperature.
• B)Ethylene glycol raises the freezing point of water.
• C)Ethylene glycol has a lower heat capacity than water.
• D)Ethylene glycol has a higher heat capacity than water.

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