Variable

{
  "id": "MLC-T-CHM-012514",
  "term": "Variable",
  "field": "Chemistry",
  "definition": "A quantity or characteristic that can assume any one of a set of values. In chemical analysis, variables can be either controlled, such as temperature or concentration of a reagent, or observed, such as the absorbance reading or reaction yield. A distinction is made between a random variable, which is subject to chance, and a non-random variable, which is fixed or deterministic in an experiment.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 1994, 66, 595. 'Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)' on page 597 (https://doi.org/10.1351/pac199466030595)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/variable/"
}