{
  "annotation_id": "233842e1-ec23-4bbc-ab36-3966e368a24e",
  "date_created": "2026-03-02T18:01:06.958000Z",
  "date_modified": "2026-03-02T18:01:06.958000Z",
  "file_hash": "3f4671f60c4eb3396253755a0ce7940a40981c0c0cb7c6b3bec8c3914dbb418e",
  "private": false,
  "record": {
    "abstract": "Examining textbooks of thermodynamics we have not able to find a proof of\nincreasing of entropy under free adiabatic expansion in vacuum based on the\nstate equation of the Van der Waals gas. This communication remedies the\nsituation. During proving we faced with an amusing example of apparent\nviolation of thermodynamics second law.",
    "arxiv_id": "physics/0605168",
    "authors": [
      "Yury A. Koksharov"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.gen-ph"
    ],
    "title": "Apparent violation of thermodynamics second law under Van der Waals gas   expansion in vacuum",
    "url": "https://arxiv.org/abs/physics/0605168"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7c990db8-5d8a-4dd9-8324-46ca01b9d04c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}