Vapour pressure of water at high temperature

Product No: P2340100

Principle

The high-pressure steam apparatus makes it possible to measure steam pressure in a temperature range of 100-250°C. This allows for investigations to be performed on real gases and vapours. Typical equilibrium states between gas and liquid phases can be set up. For this purpose, water is heated in a closed pressure chamber at constant volume. The heat of vaporisation is determined at various temperatures from the measurement of vapour pressure as a function of temperature.

Exercises

  1. Measure the vapour pressure of water as a function of temperature.
  2. Calculate the heat of vaporisation at various temperatures from the values measured.
  3. Determine boiling point at normal pressure by extrapolation.

What you can learn about

  • Boiling point
  • Heat of vaporisation
  • Clausius-Clapeyron equation
  • Van't Hoff law
  • Carnot cycle



Materiallist (Excerpt) Product Amount
High pressure vapour unit 02622-10 1
Heating apparatus for glass jacket system 32246-93 1
Tripod base PHYWE 02002-55 1
Heat conductive paste,50 g 03747-00 1
Boss head 02043-00 1
Lab thermometer,-10..+250C 38065-00 1
Support rod, stainless steel, l = 250 mm, d = 10 mm 02031-00 1
Pipette, with rubber bulb, long 64821-00 1
Laboratory Experiments Physics, Chemistry, Biology andApplied Sciences, CD-ROM, incl. operating manuals 16502-42 1

Literature for this article als follows

Title Product Language
TESS expert Handbook Laboratory Experiments Physics 16502-32 ENG

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Product No: P2340100

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