Under standard atmospheric conditions for water to boil at 212°F, which statement is correct?

Study for the NOCTI Heating, Ventilation, and Air Conditioning (HVAC) Test. Practice with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your exam!

Multiple Choice

Under standard atmospheric conditions for water to boil at 212°F, which statement is correct?

Explanation:
Standard atmospheric pressure at sea level is 14.696 psi, and at that pressure water boils at 212°F. The statement that lists 14.696 psi is correct because it reflects the defined value of standard atmosphere. The accompanying temperature (70°F) doesn’t change the pressure needed for boiling; it’s the pressure that determines the boiling point, which is 212°F under those standard conditions. The other options use different pressures or pair the standard pressure with a non-boiling temperature, so they don’t match the standard-atmosphere scenario.

Standard atmospheric pressure at sea level is 14.696 psi, and at that pressure water boils at 212°F. The statement that lists 14.696 psi is correct because it reflects the defined value of standard atmosphere. The accompanying temperature (70°F) doesn’t change the pressure needed for boiling; it’s the pressure that determines the boiling point, which is 212°F under those standard conditions. The other options use different pressures or pair the standard pressure with a non-boiling temperature, so they don’t match the standard-atmosphere scenario.

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