Volkswagen Golf Service & Repair Manual: Pressure and boiling point
| The boiling points given in the table below are always based
on an atmospheric pressure of 1 bar. If the pressure on a liquid
is changed, its boiling point changes also. |
| It is well known that, for example, the lower the pressure,
the lower the temperature at which water boils. |
| The vapour pressure curves for water and for refrigerant
R134a show that at constant pressure and falling temperature the
vapour becomes liquid (in the condenser), and that when pressure
drops, the refrigerant changes from liquid into the vapour state
(evaporator). |
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| Vapour pressure curve for water |
| C - |
Vapour pressure curve for water |
| 1 - |
Pressure on the liquid in bar (absolute) |
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| Vapour pressure curve for refrigerant R134a |
| D - |
Vapour pressure curve for refrigerant R134a |
| 1 - |
Pressure on the liquid in bar (absolute) |
|
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 |
Every material consists of a mass of moving molecules. The fast moving
molecules of a warmer material loose part of their energy to slower molecules
possessing less heat. This slows down the molec ...
The vapour pressure table for each refrigerant is published
in the literature for refrigeration engineers. This table shows
the vapour pressure exerted on the liquid ...
Other materials:
Removing and installing switch module in centre console -EX23-/-EX30-
Special tools and workshop equipment
required
Removal wedge -3409-
Caution
Danger of damage to component surfaces.
...
Assembly overview - rear brakes
Assembly overview - rear brakes:
Note
Use the brake filling and bleeding equipment -VAS 5234- to
draw off brake fluid from the brake fluid reservoir.
Before removing a brake caliper or disconnecting ...
Introduction
This chapter contains information on the following subjects:
→ Operating ParkPilot
→ Acoustic and optical ParkPilot signals
→ ParkPilot menu
→ Vehicle path display
→ Towing a trailer
The ParkPilot assists the driver when manoeuvrin ...
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Heat always flows from warmer to colder material
Vapour pressure table for refrigerant R134a