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Home >> Audi >> 2020 >> S4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Air Conditioning (Refrigerant R134A Servicing) (2 Of 2)) >> 87 Air Conditioning >> A/C System, General Information >> Refrigerant R134A Characteristics >> Vapor Pressure

Vapor Pressure

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

In a partially filled, closed container, the quantity of refrigerant evaporating from the surface equals the quantity returning to the liquid state as vapor particles condense. This state of equilibrium occurs under the influence of pressure and is often called vapor pressure. The vapor pressure is dependent on the temperature. Refer to REFRIGERANT R134A VAPOR PRESSURE TABLE  "vapor pressure table".

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