Kinetic Theory Apparatus
Product Code : LSK-POM-11207
Kinetic Theory Apparatus (SKU LSK-POM-11207) is a motor-driven model of a gas: small metal spheres resting on a rubber diaphragm inside a transparent tube are agitated by a piston, so their random motion stands in for gas molecules. It is used in Class 9 and Class 11 physics and B.Sc. heat lectures. The apparatus is manufactured by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and reaches schools, colleges, tender contractors and distributors without a middleman.
Specifications
The table lists every part of the kinetic theory model, from the tube to the motor terminals. In brief, a transparent plastic tube with a rubber diaphragm below and a perforated cap above holds 1/8 inch metal spheres, while a DC motor drives a piston under the diaphragm; the assembly sits on a base.
| Specification | Value |
|---|---|
| SKU | LSK-POM-11207 |
| Tube | Transparent cylindrical plastic tube |
| Tube lower end | Rubber diaphragm attached |
| Tube upper end | Cap with holes |
| Tube holder | Cylindrical ring with three tightening screws equally spaced around the rim |
| Agitation | Piston below the diaphragm |
| Drive | DC motor connected to the piston |
| Model molecules | Metal spheres placed on the diaphragm |
| Sphere diameter | 1/8 inch (about 3.2 mm) |
| Electrical connection | Two 4 mm socket terminals for the motor |
| Mounting | Complete assembly mounted on a base |
| Demonstrates | Kinetic theory of gases and related effects such as thinning of air with increasing altitude |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Kinetic Theory Apparatus
With the motor running, the spheres bounce about the tube like molecules of a gas, and students can see how agitation, crowding and height affect their spread. The model supports Class 9 states-of-matter lessons, Class 11 kinetic theory of gases and B.Sc. introductions to molecular motion.
- Class 9 science: the particle model of matter and why gases fill their container.
- Class 11 physics: kinetic interpretation of pressure and temperature, and why the spheres thin out higher up the tube, like air at altitude.
- Practical set-up: the motor is wired through its 4 mm sockets to a DC source such as the AC/DC Laboratory Power Supply, which has 4 mm outputs, or the Laboratory Battery Eliminator, set to the voltage given on the quotation.
Tighten the three ring screws before switching on, and keep the cap in place.
Standard Scope of Supply
The set comprises the transparent plastic tube with rubber diaphragm and perforated cap, the clamping ring with three screws, the 1/8 inch metal spheres, the piston and DC motor, and the base with two 4 mm terminals. A DC power source is not included and can be quoted separately.
Packing, MOQ and Lead Time
Ask for a quotation for one apparatus or for as many as your physics department needs. Science Lab Supplies replies with the price for that quantity, the packing method and the delivery time, and can add a power supply to the same quotation.
With its Importer-Exporter Code, Science Lab Supplies can ship to buyers in the Philippines, Nepal, Bangladesh, Zambia, Rwanda and South Africa. Requests for this heat and thermodynamics lab equipment can start on the contact page or in the enquiry cart, and the lab tender page explains how tender bids are handled.
Frequently Asked Questions
How does the Kinetic Theory Apparatus model a gas?
A DC motor drives a piston under the rubber diaphragm, which throws the metal spheres into constant random motion inside the transparent tube. Their collisions and spread behave the way the kinetic theory describes gas molecules.
What power does the motor need?
The motor connects through two 4 mm socket terminals on the base to a DC source. The operating voltage is confirmed on the quotation, and a suitable power supply can be quoted with the apparatus.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the maker. The apparatus is assembled at the company's Saha, Ambala factory in India, and the quotation you receive is issued by the manufacturer itself rather than passed on by an agent.
Related Gas-Law and Pressure Apparatus
These Properties of Matter and Heat items take the molecular picture into measurable gas laws, vacuum and atmospheric pressure, and the ratio of specific heats, so they pair naturally with a kinetic theory demonstration and can all share one quotation.
- Charles Law Apparatus (Combined) — air bulb joined to a mercury reservoir on a sliding bracket, read on a 0–100 cm rule.
- Boyles Law Apparatus, Advanced with Oil — thick-walled glass tube sealed to a metal tube by an O-ring for a leak-proof joint.
- Gas-Law Apparatus — 60 mm manometer reading 1000–3000 hPa, with a battery thermometer on a metal base.
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- Bell Experiment Apparatus — electric bell in a 2 litre bell jar, run on 3 to 6 volts.
- Air Pump (Vacuum Pump with Aluminium Plate) — steel-pipe barrel in 12.5 cm or 15.0 cm sizes, fitted on a wooden base.
- Clement and Desormes Apparatus — 10 litre glass bottle with a brass cap, stopcocks and a manometer on stand.
Visit the Properties of Matter range, the Heat range, or the full list of physics lab equipment.
Last updated: 9 October 2026