Thermochemistry

- Boiling-point elevation in a solution
- F-BP/EV
  
  Details
  
  The boiling point of a solution is always higher than that of pure solvent. A special apparatus enables to determine how the difference of temperature (boiling-point […]
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- Determination of the enthalpy of combustion by a calorimetric bomb
- C-AV-21/EV
  
  Details
  
  The calorimetric bomb is used to fully burn substances under conditions of excess oxygen. The combustion heat released is absorbed by the calorimeter in which the […]
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- Determination of the enthalpy of fusion of a pure substance
- C-AV-18/EV
  
  Details
  
  When a solid melts, energy is required to break the crystal lattice. A substance whose melting point lies slightly below the ambient temperature is first cooled […]
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- Determination of the enthalpy of neutralisation
- C-AV-17/EV
  
  Details
  
  When a strong acid is neutralised with a strong base in a diluted solution, the same amount of heat is always released. If the reaction takes […]
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- Determination of the enthalpy of vaporisation of liquids
- C-AV-15/EV
  
  Details
  
  The vaporisation of a liquid occurs with absorption of heat. To determine the enthalpy of vaporisation, a known mass of the test liquid is vaporised in […]
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- Determination of the heat of formation for CO2 and CO
- C-AV-23/EV
  
  Details
  
  The standard molar enthalpy of formation is defined as the heat of reaction that occurs in the direct formation of one mole of the pure substance […]
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- Determination of the heat of formation of water
- C-AV-22/EV
  
  Details
  
  The standard molar enthalpy of formation is defined as the heat of reaction that occurs in the direct formation of one mole of a pure substance […]
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- Determination of the mixing enthalpy of binary mixtures
- C-AV-16/EV
  
  Details
  
  When two miscible liquids are mixed, it has a positive or negative thermal effect caused by interactions between the molecules. This thermal effect depends on the […]
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- Equation of state of gas and critical point
- C-AV-13/EV
  
  Details
  
  A gaseous substance in normal conditions is enclosed in a variable volume and the dependence of the pressure from the volume is measured at different temperatures. […]
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- Freezing-point depression of a solution
- F-CONG/EV
  
  Details
  
  The freezing point of a solution is always lower than that of pure solvent. A specific instrument (cryoscope) will determine freezing-point depression in experimental way. If […]
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- Partial molar volumes
- C-PMV/EV
  
  Details
  
  The density of different ethanol-water mixtures of known composition at 20 °C is measured using a series of pycnometers. The real volumes and the average molar […]
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- Thermal capacity of gas
- C-AV-14/EV
  
  Details
  
  The gas inside the glass container is heated by an electric heater that is turned on for a short time. The temperature increase leads to a […]
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