Volkswagen Polo Service & Repair Manual: Physical Principles
| The four known states of water also apply to air
conditioning system refrigerants. |
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| When water is heated in a vessel (heat absorption), water
vapor can be seen to rise. If the vapor is further heated
through heat absorption, the visible vapor turns into invisible
gas. The process is reversible. The warmth is extracted from
gaseous water, vapor forms first, then water and then ice. |
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Heat Transfer
| Every substance consists of a mass of moving molecules. The
fast moving molecules of a warmer substance give off some of
their energy to the cooler and thus slower molecules. As a
result, the molecular motion of the warmer substance slows down
and that of the colder substance is accelerated. This process
continues until the molecules of both substances are moving at
the same speed. They are then at the same temperature and no
further heat exchange takes place. |
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The boiling point given in tables for a liquid is always
referenced to an atmospheric pressure of 1 bar (14.5 psi). If
the pressure acting on a fluid changes, its boi ...
Other materials:
Tires, Reinforced, Extra Load
Some time ago, the designation “Reinforced” was replaced
with the designation “Extra Load” by some tire manufacturers. In
countries outside Europe, this designation has been conventional
for some time. There are no technical differences.
...
Run-Flat System PAX, Support Ring
Dimensions
Overview of the most important dimensions:
Names
Example: 90-500(35) CLI A 1 876107
90 -
Designated width in millimeter ...
Symbols in the roof
Symbol
Meaning
Interior lights and reading lights
Electric panorama sliding/tilting glass roof
...
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Pressure and Boiling Point