R134a will boil at what temperature at 28 psi?

Prepare for the HVAC 403A Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

R134a will boil at what temperature at 28 psi?

R-134a boils at the saturation temperature for the system’s pressure. In other words, the liquid-vapor equilibrium occurs at a specific temperature for a given pressure, and that's the temperature at which boiling will occur. At 28 psi gauge, the absolute pressure is about 43 psi. The R-134a saturation data show that around 43 psia the saturation temperature is near 0°C, which is 32°F. So, at 28 psi, R-134a will boil at roughly 32°F. A quick context: the normal boiling point of R-134a at 1 atm is about -26°C (-15°F), illustrating how increasing pressure raises the boiling temperature.

R-134a boils at the saturation temperature for the system’s pressure. In other words, the liquid-vapor equilibrium occurs at a specific temperature for a given pressure, and that's the temperature at which boiling will occur.

At 28 psi gauge, the absolute pressure is about 43 psi. The R-134a saturation data show that around 43 psia the saturation temperature is near 0°C, which is 32°F. So, at 28 psi, R-134a will boil at roughly 32°F.

A quick context: the normal boiling point of R-134a at 1 atm is about -26°C (-15°F), illustrating how increasing pressure raises the boiling temperature.

More practice questions