"Hess's law" meaning in All languages combined

{
  "etymology_text": "Named after Germain Hess, Swiss-born Russian chemist and physician, who published it in 1840.",
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      "expansion": "Hess's law",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
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      "glosses": [
        "A relationship in physical chemistry stating that the total enthalpy change during the complete course of a reaction is the same whether the reaction is made in one step or in several steps."
      ],
      "id": "en-Hess's_law-en-name-2VYjevHK",
      "links": [
        [
          "relationship",
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        [
          "physical chemistry",
          "physical chemistry"
        ],
        [
          "enthalpy",
          "enthalpy"
        ],
        [
          "reaction",
          "reaction"
        ]
      ],
      "wikipedia": [
        "Germain Hess",
        "Hess's law"
      ]
    }
  ],
  "word": "Hess's law"
}

{
  "etymology_text": "Named after Germain Hess, Swiss-born Russian chemist and physician, who published it in 1840.",
  "head_templates": [
    {
      "args": {},
      "expansion": "Hess's law",
      "name": "en-proper noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
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        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English proper nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns"
      ],
      "glosses": [
        "A relationship in physical chemistry stating that the total enthalpy change during the complete course of a reaction is the same whether the reaction is made in one step or in several steps."
      ],
      "links": [
        [
          "relationship",
          "relationship"
        ],
        [
          "physical chemistry",
          "physical chemistry"
        ],
        [
          "enthalpy",
          "enthalpy"
        ],
        [
          "reaction",
          "reaction"
        ]
      ],
      "wikipedia": [
        "Germain Hess",
        "Hess's law"
      ]
    }
  ],
  "word": "Hess's law"
}