How does the entropy of a system change when equal volumes of ethanol and water are mixed to form a solution? these are the answer choices: 1. increases 2. decreases 3. stays the same thanks to anyone who can answer this for me.

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17-04-2016
Chemistry

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How does the entropy of a system change when equal volumes of ethanol and water are mixed to form a solution? these are the answer choices: 1. increases 2. decreases 3. stays the same thanks to anyone who can answer this for me.

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meerkat18 meerkat18 · Answer 1 · 2016-04-27T15:36:18+02:00

When equal volumes of ethanol and water are mixed to form a solution, the entropy of the resulting solution increases. This is because ethanol and water are both polar substances, making them miscible. The solubility of both substances is high because they have similar attractions due to the presence of hydrogen bonding. This means that molecules of water and ethanol freely move with each other, therefore increasing the dispersal, randomness, and disorder (entropy) of the system.