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Course: AP CHEMISTRY
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AP CHEMISTRY

1. Atomic Structure and Properties

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2. Compound Structure and Properties

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3. Properties of Substances and Mixtures

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4. Chemical Reactions

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5. Kinetics

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6. Thermochemistry

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7. Equilibrium

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8. Acids and Bases

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9. Thermodynamics and Electrochemistry

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Quiz

9.2 Absolute Entropy and Entropy Change – Check yourself

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Absolute Entropy and Entropy Change AP Chemistry check yourself quiz: free practice for AP Chemistry. Work through this Absolute Entropy and Entropy Change AP Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 9.2 Absolute Entropy and Entropy Change — Notes lesson. More practice: AP Chemistry — all units. Syllabus: College Board ap chemistry course page.

  • Questions count: 6
  • Passing grade: B+
  • Time limit: 10 minutes
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1.
According to the comparison table in this lesson, what is the Contribution of N₂(g)?
According to the comparison table in this lesson, what is the Contribution of N₂(g)?
Calculating ΔS°
192
386 − 585 = −199
393
386
2.
Which statement best describes ΔS° reaction?
Which statement best describes ΔS° reaction?
S° is not zero (unlike ΔHf°).
Σ S°(products) − Σ S°(reactants).
J/(mol·K).
Perfect crystal at 0 K has S = 0.
3.
Which step comes first in the sequence covered in this lesson?
Which step comes first in the sequence covered in this lesson?
S increases
S = 0
Heating
0 K perfect crystal
4.
Which statement best describes Molar mass / complexity?
Which statement best describes Molar mass / complexity?
Perfect crystal at 0 K has S = 0.
Heavier, complex molecules have higher S.
Σ S°(products) − Σ S°(reactants).
S° is not zero (unlike ΔHf°).
5.
Which key term matches this description: "Perfect crystal at 0 K has S = 0."
Which key term matches this description: "Perfect crystal at 0 K has S = 0."
Third law
Absolute entropy (S°)
Molar mass / complexity
ΔS° reaction
6.
Complete the statement: ΔS° = Σ products − Σ ______.
Complete the statement: ΔS° = Σ products − Σ ______.
reactants
zero
Third law
Absolute entropy (S°)
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Part of 9. Thermodynamics and Electrochemistry — see every lesson and quiz in this unit.
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