AP Chemistry/Unit 9/Note Packet
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Unit 9: Thermodynamics and Electrochemistry

AP Chemistry — Note Packet

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Key Terms

Entropy (S)

The ___ of energy and matter, or the number of available ____________ in a system.

Second Law of Thermodynamics

For any thermodynamically favorable process, the total entropy of the ___ always ____________.

Microstate

A specific ___ of particles and energy within a system.

Absolute Entropy (S°)

The entropy of a substance at a given temperature, which is ___ positive above 0 Kelvin.

Third Law of Thermodynamics

The entropy of a perfect crystalline solid at ___ ____________ (0 Kelvin) is exactly zero.

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