Verifikation des Boyle'schen Gesetzes

Demonstration der umgekehrten Proportionalität zwischen Druck und Volumen

Gas Laws Intermediate (High School) 40 Min. ~$15,00

Ziel

Das Boyle'sche Gesetz (P₁V₁ = P₂V₂) durch Messung des Volumens eines eingeschlossenen Gases bei verschiedenen Drücken überprüfen.

Hintergrund

Boyle's law states that at constant temperature, the pressure and volume of a gas are inversely proportional. This experiment uses a closed syringe or J-tube manometer to measure gas volume at different pressures and confirm the relationship.

Sicherheitswarnungen

  • Do not apply excessive pressure to glass apparatus
  • Ensure all connections are airtight

Erforderliche PSA

goggles

Materialien

  • Boyle's law apparatus or large syringe (1)
    60 mL syringe works
  • Pressure gauge (1)
    Or manometer
  • Rubber tubing (30 cm)
  • Graph paper (2 sheets)

Ausrüstung

Retort stand and clamp Weights or books for applying pressure Ruler

Durchführung

1

Set up the Boyle's law apparatus with a known volume of trapped air. Record the initial pressure and volume.

5 Min.
2

Increase the pressure by adding mercury or pushing the syringe. Record the new pressure and volume.

5 Min. Do not force the syringe
3

Take at least 8 readings at different pressures, both increasing and decreasing.

15 Min.
4

Calculate PV for each reading. They should all be approximately equal.

5 Min.
5

Plot P vs V (hyperbola) and P vs 1/V (straight line through origin) graphs.

8 Min.

Erwartete Ergebnisse

The product PV should remain approximately constant (within 5% experimental error). The P vs 1/V graph should be a straight line through the origin, confirming the inverse proportionality.

Aufräumen

Return apparatus to storage. Dispose of graph paper drafts.

Details

Kategorie
Gas Laws
Schwierigkeit
Intermediate (High School)
Dauer
40 Min.
Geschätzte Kosten
$15,00
Schritte
5
Materialien
4

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Frequently Asked Questions

What is the objective of Verifikation des Boyle'schen Gesetzes?
Das Boyle'sche Gesetz (P₁V₁ = P₂V₂) durch Messung des Volumens eines eingeschlossenen Gases bei verschiedenen Drücken überprüfen.
How difficult is Verifikation des Boyle'schen Gesetzes?
This experiment is rated as Intermediate (High School). It takes approximately 40 minutes to complete.
What safety precautions are needed for Verifikation des Boyle'schen Gesetzes?
Key safety precautions include: Do not apply excessive pressure to glass apparatus; Ensure all connections are airtight.
What materials are needed for Verifikation des Boyle'schen Gesetzes?
The main materials required are: Boyle's law apparatus or large syringe, Pressure gauge, Rubber tubing, Graph paper.
What results should I expect from Verifikation des Boyle'schen Gesetzes?
The product PV should remain approximately constant (within 5% experimental error). The P vs 1/V graph should be a straight line through the origin, confirming the inverse proportionality.