Kinetic Theory Apparatus

Product Code : EL-POM-10380

Specifications

How the kinetic theory model is used in teaching

The kinetic theory treats a gas as a very large number of tiny particles in constant, random motion, colliding with each other and with the walls of their container. In this model the metal spheres play the part of the molecules, and the vibrating rubber diaphragm, driven by the motor and piston, supplies the energy that keeps them moving, much as heat does for a real gas.

Increasing the motor speed makes the spheres move faster and strike the walls and cap more often and harder, a direct picture of how raising the temperature raises gas pressure. With the motor running, more spheres are found near the diaphragm than near the top of the tube, which models the way air grows thinner with increasing altitude.

1. Seat the tube in the cylindrical ring and tighten the three screws.
2. Place the metal spheres in the tube above the diaphragm and fit the perforated cap.
3. Connect a suitable DC supply to the two 4 mm socket terminals and start the motor.
4. Observe the spheres at a low speed, then increase the speed and compare how high and how often they strike the cap.

Key features

• Transparent plastic tube for a clear view of the moving spheres
• Rubber diaphragm at the lower end, agitated by a DC motor-driven piston
• Metal spheres of 1/8 inch diameter as model molecules
• Perforated cap at the upper end that keeps the spheres in the tube
• Mounting ring with three tightening screws to hold the tube firmly
• Two 4 mm socket terminals for connection to a DC supply

Documentation and supply

Installation instructions and a manual are supplied with the apparatus. Most Lab Exports products carry a one-year manufacturer warranty.

Lab Exports manufactures the kinetic theory apparatus at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.

Related Properties of Matter products

• Fluid Pressure Apparatus, Hydraulic Press (EL-POM-10379)
• Force Pump (EL-POM-10378)
• Lift Pump (EL-POM-10377)
• Bourdon Gauge (EL-POM-10376)
• Boyles Law Apparatus, Advanced with Oil (EL-POM-10375)
• Charles Law Apparatus, Basic (EL-POM-10374)

The full range is in the Properties of Matter section of the Physics Lab range.

Frequently asked questions

What does the kinetic theory apparatus demonstrate?

It models the random motion of gas molecules, the link between molecular speed, temperature and pressure, and the thinning of air with height.

How are the spheres set in motion?

A piston driven by a DC motor vibrates the rubber diaphragm at the bottom of the tube, which throws the spheres upward.

How is the motor connected?

Through two 4 mm socket terminals, which take standard 4 mm plugs from a DC supply.

What is the price of the kinetic theory apparatus?

Prices are not published on the website. Add the kinetic theory apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-POM-10380 and the quantity, to receive a quotation.

Does Lab Exports manufacture the kinetic theory apparatus?

Yes. Lab Exports manufactures the kinetic theory apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code EL-POM-10380.

Request a quote

Email [email protected] with the house code EL-POM-10380 and the quantity, or add the kinetic theory apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.