AP®︎ Chemistry: Topic 6.1 Flashcards

Master key terms and definitions for Topic 6.1 of AP Chemistry – Endothermic and Exothermic Processes to help you prep for quizzes and the AP exam.

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Term

Energy

Definition

The capacity to do work or transfer heat.

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Energy
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The capacity to do work or transfer heat.

6.1.A
Kinetic Energy
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Energy due to motion; in particles, it increases as temperature increases.

6.1.A6.1.A.1
Potential Energy
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Stored energy due to position or interactions, especially in chemical bonds and attractions.

6.1.A6.1.A.3
Law of Conservation of Energy / First Law of Thermodynamics
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Energy cannot be created or destroyed, only transferred or converted between forms.

6.1.A6.1.A.3
System and Surroundings
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The part studied is the system; everything else is the surroundings.

6.1.A6.1.A.3
Enthalpy and Enthalpy Change
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Total heat content of a system and the difference between final and initial values.

6.1.A
Physical and Chemical Transformations as Endothermic or Exothermic
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Heating, cooling, phase changes, and reactions can absorb or release energy.

6.1.A6.1.A.2
Dissolution as Endothermic or Exothermic
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Solution formation absorbs or releases energy depending on relative interaction strengths before and after dissolving.

6.1.A6.1.A.4
Endothermic vs. Exothermic Processes
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Processes absorb heat from surroundings with positive ΔH or release heat with negative ΔH.

6.1.A6.1.A.3
Temperature Change and Energy Transfer
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Temperature changes show energy transfer between system and surroundings during physical or chemical changes.

6.1.A6.1.A.1