17 3 Entropy Entropy a measure of disorder in a system S Solids Liquids Gases Solids have the lowest entropy Liquids have higher entropy than solids but lower entropy than gases Gases have the highest entropy they are the most disordered because they are able to move around the most CHANGE IN ENTROPY S Sfinal Sinitial 17 4 Changes in Entropy Suniverse Ssystem Ssurroundings Ssurr Hsystem T Ssystem can be determined experimentally
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