AP®︎ Chemistry: Topic 6.3 Flashcards

Master key terms and definitions for Topic 6.3 of AP Chemistry – Heat Transfer and Thermal Equilibrium to help you prep for quizzes and the AP exam.

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Term

Thermal Contact

Definition

A condition where two bodies can exchange energy through collisions between their particles.

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Thermal Contact
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A condition where two bodies can exchange energy through collisions between their particles.

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Direction Of Heat Flow
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Energy as heat flows from the warmer body to the cooler body.

6.3.A
No Net Energy Transfer At Thermal Equilibrium
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Energy still moves both ways, but equal transfers cause no overall change.

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Zeroth Law Of Thermodynamics
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If A is in thermal equilibrium with B, and B with C, then A with C.

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Temperature, Average Kinetic Energy, and Thermal Equilibrium
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Equal temperature means equal average kinetic energy, so no net heat flows between bodies.

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Heat Transfer Through Molecular Collisions
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Collisions transfer kinetic energy from faster particles to slower particles in thermal contact.

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