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Science is it possible make a smaller joule to create, a bigger joule?

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nice.rider
post Oct 1 2009, 12:46 AM

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is it possible make a smaller joule to create, a bigger joule?

The answer is no, as what law of conservation energy stated.

It is like asking the question whether we can open the door of the refigerator and trying to cool down the entire kithen.

Within an enclose system (e.g. the refigurator), the electrical energy is translated to mechanical energy to compress and expand the gas to cool down the temperature within the enclose system.

Say 100K joules were transformed. Only 90k were effective while 10k joule were released/wasted as a form of heat.

Let looks at the more open system (the kithen), the second law of thermodynamic stated that the entrophy (disorder, wasted energy, heat) would increase.

We are increasing the entrophy (disorder, heat) in our day to day lives by using air con per says. In an enclose system, the house, the office they are cooling to the expand of warming up the open system (the environment). The more we use the air con, the more we heat up the env. It is a chain reaction (in a bad way unfortunately).

If we look at the enclosed system, sometime we may misinterpreted that the energy within is increased. However, looking at the macro view of the larger open system, useable energy is getting reduced and entrophy increase as what stated by the second law.

Energy is always conserve in the super set macro view.





 

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