Difference between revisions of "Second Law of Thermodynamics"
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| − | The Second Law of Thermodynamics states that the entropy of the universe tends towards a maximum. | + | 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. | 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. | ||
Revision as of 21:17, March 19, 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