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Determination of the heat of formation of water

Determination of the heat of formation of water

Item no.: P3021501

Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
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Principle

Standard molar enthalpies of formation ΔBHΦ are important compiled thermodynamics tabulation quantities for calculating standard enthalpies of reaction for any arbitrary reaction. They are defined as the heat of reaction occurring in the direct formation of one mole of the pertinent pure substance from the stable pure elements at constant pressure. For spontaneous and quantitative formation reactions, e.g. the conversion of hydrogen and oxygen to water, standard enthalpies of formation can be measured directly using calorimetry.

Tasks

Determine the enthalpy of formation of water by burning 100 ml H2 in a closed glass jacket calorimeter.

What you can learn about

  • First law of thermodynamics
  • Thermochemistry
  • Calorimetry
  • Enthalpy of formation
  • Enthalpy of reaction

Necessary accessories

  • Precision balance 620g/0.001g

 

Document     Filesize
p3021501e.pdf Experiment guide, English 231.44 KB

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