This order makes qualitative sense based on the kinds and extents of motion available to atoms and molecules in the three phases. K), whereas S° for water vapor is 188.8 J/(mol.For instance, S° for liquid water is 70.0 J/(mol The increase of disorder provides most of the free energy.\), for substances with approximately the same molar mass and number of atoms, S° values fall in the order S°(gas) > S°(liquid) > S°(solid).
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