Chemistry Molecular Properties
SOM CODE : 2880/1
MODEL : XCV-361-000R
COMPANY : GRIFFIN ENGLAND
KINETIC THEORY MODEL WITH ELECTRIC MOTOR 6V
This model provides in analogue form, a visual representation of molecular movement in gases. A piston, in a wide Perspex tube, is vibrated by a low-voltage electric motor housed in a box supporting the tube. Tiny metal spheres, simulating gas molecules, are propelled upwards in a tube by the piston's vibrations. The movements of the spheres are seen to be random both in direction and extent. The motor is provided with a speed control. Higher speeds give more extensive movements of the spheres. The electric motor requires a 6V DC power supply capable of providing a current of 2.5A.
For demonstrations to larger groups illumination from the side and a black background are recommended to highlight the spheres.
SOM CODE : 2240
MODEL : 27-17/2-4V
COMPANY : YAGAMI JAPAN
AIR MOLECULAR MOVEMENT PROJ KG-1 DC.
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