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6 December, 08:50

Why does the entropy of a gas increase when it expands into a vacuum? Why does the entropy of a gas increase when it expands into a vacuum? The entropy of a gas increases when it expands into a vacuum because the number of possible states decreases. The entropy of a gas decreases when it expands into a vacuum because the number of possible states increases. The entropy of a gas increases when it expands into a vacuum because the number of possible states increases. The entropy of a gas decreases when it expands into a vacuum because the number of possible states decreases

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  1. 6 December, 09:15
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    The entropy of a gas increases when it expands into a vacuum because the number of possible states increases.

    Explanation:

    When a gas expand in a vacuum, the molecules of the gases vibrates very fast and starting moving with higher velocity in random directions which means the level of disorder in the gases increases.

    Now the possible state of the gas molecule increases such as the particle can be located at different position due to increased randomness.

    Entropy is the measure of this randomness and thus with this increased randomness entropy also increases.
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