Difference between revisions of "Second Law of Thermodynamics"

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The Second Law of Thermodynamics states that the entropy of an isolated system cannot decrease. Since the Universe is such a system, it follows that the entropy of the Universe must increase or remain constant.
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The Second Law of Thermodynamics states that the entropy of the universe tends towards a maximum.
  
According to this law, it is impossible to build a [[perpetual motion machine]].
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According to this law, it is impossible to build a [[perpetual motion machine]], and entropy in a completely closed system must either increase or remain constant.
  
Thermodynamic systems can be divided into three different types:
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There are three different types of systems that the Second Law of Thermodynamics can apply to:
  
 
* Isolated system - Does not exchange matter or energy with its surroundings
 
* Isolated system - Does not exchange matter or energy with its surroundings
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* Open system - Exchanges both matter and energy with its surroundings
 
* Open system - Exchanges both matter and energy with its surroundings
  
Many Creationists claim that the Second Law of Thermodynamics disproves evolution.<ref>http://www.trueorigin.org/steiger.asp</ref> Most scientists reject this claim, stating that the earth is not an isolated system because energy is pumped in from the sun, as well as lost to space.
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Many Creationists claim that the Second Law of Thermodynamics disproves evolution.<ref>http://www.trueorigin.org/steiger.asp</ref> Evolutionists deny this claim stating that the earth is not an isolated system because energy is pumped in from the sun. However, the universe as a whole is an isolated system. An isolated system never exchanges matter or energy with its surroundings. It is impossible for the total entropy of an isolated system to decrease, therefore the universe is becoming more and more disordered. In this way the Second Law of Thermodynamics disproves evolution.
  
 
==References==
 
==References==
 
<references/>
 
<references/>

Revision as of 22:50, 3 March 2007

The Second Law of Thermodynamics states that the entropy of the universe tends towards a maximum.

According to this law, it is impossible to build a perpetual motion machine, and entropy in a completely closed system must either increase or remain constant.

There are three different types of systems that the Second Law of Thermodynamics can apply to:

  • Isolated system - Does not exchange matter or energy with its surroundings
  • Closed system - Exchanges energy, but not matter, with its surroundings
  • Open system - Exchanges both matter and energy with its surroundings

Many Creationists claim that the Second Law of Thermodynamics disproves evolution.[1] Evolutionists deny this claim stating that the earth is not an isolated system because energy is pumped in from the sun. However, the universe as a whole is an isolated system. An isolated system never exchanges matter or energy with its surroundings. It is impossible for the total entropy of an isolated system to decrease, therefore the universe is becoming more and more disordered. In this way the Second Law of Thermodynamics disproves evolution.

References

  1. http://www.trueorigin.org/steiger.asp