🔍 Key Concepts

• Relationship between psia (pounds per square inch absolute) and normal atmospheric pressure at sea level • Definition of saturated vapor and what it means for a liquid to be at its boiling point • Typical boiling point of water at standard atmospheric pressure

💭 Think About

• Think about what pressure 14.7 psia represents in everyday conditions and how that relates to boiling water on the surface of the earth. • Recall the common temperature value used in engineering and everyday life for when water starts to boil in an open pot at sea level. • Compare each choice and ask yourself: which temperature is widely used as the reference boiling point of water in basic thermodynamics tables?

✅ Before You Answer

• Confirm what pressure in psia is equivalent to standard atmospheric pressure at sea level. • Verify the standard boiling point of water at that pressure from a steam table or basic reference. • Check that the correct choice shows a temperature in both °F and °C that matches that standard boiling/ saturated vapor point.