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25 August, 22:10

Be sure to answer all parts. For which of the following process (es) does entropy increase? For which of the following process (es) does the entropy decrease? Entropy increases: heating hydrogen gas from 60°C to 80°C subliming dry ice forming sucrose crystals from a supersaturated solution condensing water Entropy decreases: subliming dry ice forming sucrose crystals from a supersaturated solution condensing water heating hydrogen gas from 60°C to 80°C

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  1. 25 August, 23:55
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    1. Heating hydrogen gas from 60°C to 80°C: Entropy increases

    2. Subliming dry ice: Entropy increases

    3. Forming sucrose crystals from a supersaturated solution: Entropy decreases

    4. Condensing water: Entropy decreases

    Explanation:

    Entropy is a measure of systems disorder. The higher the entropy the higher the disorder. So for the firs example if we heat a gas, molecules move faster, disorder is higher. For second example we are making disordered gas from very ordered crystals also increase in disorder. For 3rd example we are obtaining crystals which brings order. And for the fourth example we make liquid from gas which is also more order.
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