This apparatus from Eisco has been designed to demonstrate Charles's Law that in a gas under constant pressure, the volume is proportional to the absolute temperature. The apparatus includes a U-shaped glass 15mm in diameter with one plain limb 220mm long, one 120mm graduated limb terminating in a 37mm diameter bulb with a third limb, jointed at right angles to the other two. A short length of rubber tubing with two pinch clips on a length of glass tubing is mounted at the end of one limb with a rubber bung. * Supplied with 1000ml capacity tall form beaker and stirrer * All glass parts made from borosilicate glass * Manufacturer's part PH0422 https://elecena.pl/product/27244132/eisco-charle-s-law-apparatus 2024-11-12 https://elecena.pl/product/27244132/eisco-charle-s-law-apparatus 2025-04-07 https://elecena.pl/product/27244132/eisco-charle-s-law-apparatus 2025-05-25 https://elecena.pl/product/27244132/eisco-charle-s-law-apparatus 2026-05-07 https://elecena.pl/product/27244132/eisco-charle-s-law-apparatus 2026-07-13 https://elecena.pl/product/27244132/eisco-charle-s-law-apparatus 2026-09-22