Apparatus for Demonstrating the Boil-Marriott Law
Product Code : SCL-PL-11814
Apparatus for Demonstrating the Boil-Marriott Law (SKU SCL-PL-11814) demonstrates the Boyle–Mariotte law, usually called Boyle's law: for a fixed mass of gas at constant temperature, volume is inversely proportional to pressure, so PV stays constant. It is built for demonstration and practical work in Class 11 physics and college heat courses. Science Lab Supplies is the maker, producing it at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, for direct sale to schools, colleges, tender contractors and distributors.
Specifications
A transparent tube mounted horizontally carries a 0–300 cm³ scale and is closed by a gas tap, with a pressure gauge beside the tap. Moving the rubber stopper selects the effective tube length, and a 300 x 200 mm cursor is shifted to vary the volume. Glass tubes of 25, 100 and 500 ml are included.
| Parameter | Value |
|---|---|
| SKU | SCL-PL-11814 |
| Also known as | Boyle's law apparatus; Boyle–Mariotte law apparatus |
| Tube | Transparent, mounted horizontally, scale 0–300 cm³ |
| Closure and gauge | Gas tap; pressure gauge next to the tap |
| Cursor | 300 x 200 mm, with rubber lid |
| Glass tubes | Cylindrical, 25 ml, 100 ml and 500 ml |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Boyle's Law Apparatus
The apparatus is used to show that halving the volume of a trapped gas roughly doubles its pressure when temperature is unchanged. Students record volume and pressure pairs and plot P against 1/V, a standard gas-law practical and useful heat and thermodynamics lab equipment for schools and colleges.
- NCERT Class 11 physics (Kinetic Theory): Boyle's law and the ideal gas equation.
- Kinetic-theory lessons: linking PV = constant to molecular collisions with the tube walls.
- Plotting P against V and P against 1/V to test PV = constant.
- B.Sc. and diploma heat practicals: gas laws at constant temperature.
The cylindrical tubes are glass and the trapped air is under pressure, so change the pressure gradually and use the apparatus under teacher supervision.
Standard Scope of Supply
The set is supplied with the horizontal transparent tube and 0–300 cm³ scale, the gas tap, the pressure gauge, the rubber stopper, the cursor with rubber lid, cylindrical glass tubes of 25, 100 and 500 ml, and the demonstration table for the Boyle–Mariotte experiment.
Packing, MOQ and Lead Time
One set or several can be quoted; the quotation spells out packing, delivery time and price for the number you need. Other gas-law and air-pressure apparatus can be priced on it as well.
Registered with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. Start an enquiry from the enquiry cart or the contact page; institutional buyers can also consult the lab tender page.
Frequently Asked Questions
What is the Boil-Marriott law?
It is the Boyle–Mariotte law, better known as Boyle's law: at constant temperature, the pressure of a fixed mass of gas is inversely proportional to its volume.
What volume range does the scale cover?
The horizontal tube carries a scale from 0 to 300 cm³, and glass tubes of 25, 100 and 500 ml are included.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the manufacturer and makes this apparatus at its own facility in Saha, Ambala, India, so the quotation comes from the maker.
Can it be supplied for a tender?
Yes. Share the quantity, delivery point and specification, and an item-wise quotation will follow based on the parts listed here.
Related Gas and Air Pressure Apparatus
Gas laws are taught alongside air-pressure demonstrations. These four items from the Physics Lab range support the same unit on pressure and can go on one quotation with this apparatus.
- Boyle's Law Apparatus — a second set-up for the same law.
- Hand Vacuum Pump — for reduced-pressure demonstrations.
- Bell Jars — for air-pressure demonstrations.
- Crushing Can — shows the force of atmospheric pressure.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
