Chemistry

12th

grade

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Entropy

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17 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt
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    Entropy increases from solid, liquid to gas. Why?
    Molecular disorder increases
    Molecular randomness decreases
    Molecules are more energetic
    Molecules are more reactive
  • 2. Multiple Choice
    30 seconds
    1 pt

    Which represents a decrease in entropy?

    sublimation of CO2

    boiling water

    condensation of steam on cold glass

    NaCl dissolving in water

  • 3. Multiple Choice
    30 seconds
    1 pt

    The entropy will usually increase when

    a molecule is broken into two or more smaller molecules

    a reaction occurs that results in an increase in the number of moles of gas

    a solid changes to a liquid

    all of these

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