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 with Rim Protector
The tire industry produces tires with rim protector for
light alloy wheels (rim protector). The rim protector prevents
damage to the light alloy wheels caused by contact with curbs.
Using tires with rim protector on steel wheels with wheel
...
Securing child seats with a seat belt
First read and observe the introductory information
and safety warnings
It is permissible to fasten child seats with universal written
on the orange label to the seats using the seat belt, but only on the seats marked
in the table with a u.
Weight class
Front passe ...
Switching the front passenger front airbag on and off manually using the key-operated
switch
Fig. 58 In the stowage compartment on
the front passenger side: key switch for disabling and enabling the front airbag
on the front passenger side
First read and observe the introductory information
and safety warnings
The front passenger front airbag must be switched off when securing a
...
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Pressure and Boiling Point