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2A10.50 - Pressure Within a Bubble

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​2A10.50 - Pressure Within a Bubble

Preview
SelectSelected
Title2A10.50 - Pressure within a Bubble
Objective

Demonstrate the difference in pressure between two different bubbles.​

StatusAvailable
Assembly Instructions

Overview: Solution Composition: 50ml Soap + 50ml Glycerine + 400ml Water

Instructions:  Mount the double bubble T-Tube with the bench rods and clamps.  Place the blocking plate behind the double bubble apparatus. Place a fresh straw in the end of the blow pipe for the instructors.  Dip each of the thistle tubes into the soap solution.

Setup Time10
Operation Time
Preview Time5
Operation Instructions

Make sure there is a fresh straw in the blow tube and that each of the thistle tubes are dipped in the soap solution.  Begin by slowly blowing into the blow tube to see the bubbles begin to grow.  To get two different size bubbles, pinch one of the tubes while you continue to blow air into the other bubble.  After the desired bubbles are blown, the end of the blow pipe is sealed with your finger and the rest of the experiment runs itself.

ExportableNo
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone
Analysis/Information

Category2 Fluid Mechanics
Subcategory2A - Surface Tension
Keywordsdouble bubble, T tube, blow pipe, pressure difference, bubble
Construction Information
 
  
  
double bubble apparatus
1
clamp 3-fingered
1
rod clamp
1
bench rod
1
bench clamp
1
blocking plate
1
straws
1
soap solution
petri dish - plastic
2
camera - b&w
1