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1

An increase in pressure is not what causes condensation and rain. Besides, the formula $pV = \text{const}$ applies to an isolated sample of a fixed amount of gas at a fixed temperature. Those conditions don't hold true for air in the atmosphere. The real reason it rains is quite complicated, but the gist of it is that upward air currents can carry air with ...

2

Generally speaking low and high pressure areas are associated with vertical movement of the air. Air rises in a low pressure area and falls in a high pressure area. In a low pressure area the rising air cools and this is likely to condense water vapour and form clouds, and consequently rain. The opposite is true in a high pressure area, which is why high ...

5

It is just easier, i.e. less expensive, to build and maintain them that way. There exist alternative designs that are more efficient but also more difficult (= more expensive) to build, put up and maintain. You can check those out via this link.

0

The air in the bag will be compressed when a weight is placed on the bag. The change of air pressure in the bag will change according to the bulk modulus of the fluid (air in this case) in the bag. The equation for bulk modulus is as follows: $$B=-\frac{\Delta p}{\Delta V/V}$$ In this case, $B$ is the bulk modulus of air, $\Delta p$ is the change of the air ...

3

Short answer: No. As you pump more and more air into the container, the pressure rises and rises. At some point, the molecules are so close to each other that instead of a gas, you get a liquid. If you continue even more, eventually you'll get a solid. In this solid, atoms/molecules are arranged in a regular pattern with well defined distances between ...

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