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Heat capacity of gases with Cobra4

Heat capacity of gases with Cobra4

Item no.: P2320261
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Heat is added to a gas in a glass vessel by an electric heater which is switched on briefly. The temperature increase results in a pressure increase, which is measured with a manometer. Under isobaric conditions a temperature increase results in a volume dilatation, which can be read from a gas syringe. The molar heat capacities are calculated from the pressure or volume change.


  • Determination of cp and cv
  • For both demonstration and student experiments
  • Suitable for many different gases
  • Simplified implementation: all pre-settings already prepared


Determine the molar heat capacities of air at constant volume and at constant pressure.

What you can learn about

• Equation of state for ideal gases
• 1st law of thermodynamics
• Universal gas constant
• Degree of freedom
• Mole volumes
• Isobars
• Isotherms
• Isochors and adiabatic changes of state

Software included. Computer not provided.

Document     Filesize
p2320261e.pdf Experiment guide, English 633.17 KB

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