{
  "annotation_id": "22ded75e-4a15-4d03-80a7-403e46882770",
  "date_created": "2026-03-02T18:00:35.384000Z",
  "date_modified": "2026-03-02T18:00:35.384000Z",
  "file_hash": "0b708733e7300f0ef0fb400a9ec813c20613fd247ecef18c1b2debb1bd3edab5",
  "private": false,
  "record": {
    "abstract": "Coupling and decoupling of chemical reactions are explored through a modified\nheat balance equation. Reaction enthalpies are found to play crucial role; the\nsign of their product for a pair of consecutive chemical reactions determine\nwhether they couple or not. The possibility of a coupling-uncoupling transition\nfor such reactions is thus introduced for the first time. The present work\nresolves a paradox concerning negative efficiency of coupled consecutive\nchemical reactions. Enthalpy is also shown to be a \"constant of motion\" along\nthe reaction coordinate as long as the mass action ratio varies little with\ntemperature. The present analysis puts the observed difference between\ncalorimetric and van\u0027t Hoff enthalpies on a quantitative basis. A case study is\npresented with a third order reaction where the enthalpic criterion is useful\nin selecting the more probable of the alternative mechanisms.",
    "arxiv_id": "physics/0108070",
    "authors": [
      "Asoke P. Chattopadhyay",
      "Anjan K. Dasgupta"
    ],
    "categories": [
      "physics.chem-ph"
    ],
    "title": "Global selection rule in chemical coupling",
    "url": "https://arxiv.org/abs/physics/0108070"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "35713a73-4ce4-4c04-823a-5448b49d06bc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}