In a vented closed cooling system, what is the coolant’s boiling point at atmospheric pressure?

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Multiple Choice

In a vented closed cooling system, what is the coolant’s boiling point at atmospheric pressure?

Explanation:
At atmospheric pressure, the liquid boils at a fixed temperature, which for water is 212°F (100°C). A vented closed cooling system is open to the surrounding atmosphere, so the pressure on the coolant remains roughly one atmosphere. That means its boiling point is about 212°F. (In real systems, the actual coolant is often a water-eth antifreeze mix, which raises the boiling point above 212°F, but the reference at atmospheric pressure is 212°F.)

At atmospheric pressure, the liquid boils at a fixed temperature, which for water is 212°F (100°C). A vented closed cooling system is open to the surrounding atmosphere, so the pressure on the coolant remains roughly one atmosphere. That means its boiling point is about 212°F. (In real systems, the actual coolant is often a water-eth antifreeze mix, which raises the boiling point above 212°F, but the reference at atmospheric pressure is 212°F.)

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