Recreational Vehicle (RV) Technician Practice Test

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At what temperature does propane effectively change from liquid to vapor?

  1. -44 degrees Fahrenheit

  2. 0 degrees Fahrenheit

  3. 32 degrees Fahrenheit

  4. 60 degrees Fahrenheit

The correct answer is: -44 degrees Fahrenheit

Propane has a boiling point of approximately -44 degrees Fahrenheit at standard atmospheric pressure. This means that at temperatures above -44 degrees Fahrenheit, propane transitions effectively from its liquid state to vapor. Understanding this property is crucial in applications involving propane, such as in heating systems, RV appliances, and cooking equipment. In contrast, the other temperature options fall above the boiling point of propane. At these temperatures, propane may still be present in liquid form under certain conditions, or it may not vaporize as efficiently. Therefore, recognizing -44 degrees Fahrenheit as the critical temperature for the phase change of propane is essential for safety and operational efficiency in RV systems that utilize this fuel.

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