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endothermicZoomA-Z

Subject - General Chemistry

Endothermic reactions proceed with uptake of heat from the surroundings (the opposite is exothermic). Accordingly, the reaction shows a positive reaction enthalpy or phase transfer enthalpy.

Examples of endothermic processes:

  • Melting
  • Evaporating
  • Reaction of hydrogen with graphite to form acetylene

See also: exothermic