The laws of thermodynamics

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6 Terms

1
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What is the zeroth law of thermodynamics?

If two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.

2
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What physical property is defined by the zeroth law?

Temperature

3
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What is the first law of thermodynamics?

The total energy of an isolated system is constant.

Energy is conserved but can transform between heat and work.

<p>The total energy of an isolated system is constant.</p><p></p><p>Energy is conserved but can transform between heat and work.</p>
4
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What physical property is defined by the first law?

Internal temperature

5
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What is the second law of thermodynamics?

  • The total entropy of an isolated system can never decrease over time.

  • In any energy exchange, if no energy is added to or removed from the system, the system will tend toward a state of maximum entropy.

<ul><li><p>The total entropy of an isolated system can never decrease over time. </p></li></ul><p></p><ul><li><p>In any energy exchange, if no energy is added to or removed from the system, the system will tend toward a state of maximum entropy.</p></li></ul><p></p>
6
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What physical property is defined by the second law?

Entropy