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Gibbs paradox in statistical mechanics is related to

Gibbs paradox in statistical mechanics is related to Correct Answer additive property of the entropy

Explanation:

  • The classical Gibbs paradox concerns the entropy change upon mixing two gases.
  • Whether an observer assigns an entropy increase to the process depends on their ability to distinguish the gases.
  • A resolution is that an “ignorant” observer, who cannot distinguish the gases, has no way of extracting work by mixing them.

So, a semi-classical derivation of the entropy that does not take into account the indistinguishability of particles, yields an expression for the entropy which is not extensive.

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