Multiple choice

Trouton's rule is obeyed by

  1. hydrogen

  2. methanol

  3. benzene

  4. acetic acid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Trouton's rule states that the entropy of vaporization for various normal liquids at their boiling points is almost the same constant value, approximately 85-88 J/(K mol). Benzene is a classic non-associated liquid that closely obeys Trouton's rule, whereas liquids with strong hydrogen bonding like water, methanol, and acetic acid show significant deviations.

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