Charles Law Apparatus (Combined) Manufacturer,Supplier and Exporter in India
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Product Code : ILS-POM-10876
Indian Lab Suppliers supplies the Charles Law Apparatus (Combined) (Product ID: 10876) as part of its properties of matter range. It measures how the pressure of a fixed mass of air changes with temperature when its volume is held constant.
Quick Answer
Jolly’s air bulb is connected by flexible rubber tubing to a glass mercury reservoir that slides on a vertical rod. The polished wooden stand sits on a heavy cast-metal base with levelling screws, and a metre scale graduated 0–100 cm × 1 mm, reading in both directions, gives the mercury levels directly. With the bulb in water at different temperatures, the reservoir is moved to bring the mercury back to a fixed mark, and the pressure is atmospheric pressure plus the level difference. Strictly, this constant-volume relation is the pressure law (Gay-Lussac’s law), though it is often taught alongside Charles’s law. Mercury is not included; handle it over a spill tray with good ventilation.
Key Specifications
| Parameter | Detail |
|---|---|
| Gas bulb | Jolly’s air bulb |
| Reservoir | Glass, on sliding bracket on vertical rod |
| Scale | 0–100 cm x 1 mm, reads both directions |
| Base | Heavy cast metal, levelling screws |
| Not included | Mercury |
Where This Is Used
Used for gas-law practicals and to estimate absolute zero from a pressure–temperature graph. A simpler volume–temperature set is the Charles Law Apparatus, Basic (Product ID: 10877). Browse the full Properties of Matter range or related Heat products.
Frequently Asked Questions
Which gas law does it verify?
The pressure law: at constant volume, pressure is proportional to absolute temperature.
Is mercury supplied?
No, it is supplied without mercury.
What is it also called?
Jolly’s apparatus.
Related Categories
Properties of Matter · Heat · Physics Lab Equipment
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