Calorimeter Joule's-Double Wall (Aluminium)

Comprises a smaller inner nickel plated copper calorimeter vessel

75×50mm (height × diameter), enclosed in an outer vessel 100×75mm (height × diameter) with

felt lagging in between them for minimizing heat loss.

A close fitting bakelite lid is provided with a resistance coil mounted at the underside so as to be

positioned sufficiently inside inner vessel and a pair of 4mm terminals at the top for electrical

connections. The lid has provision for thermometer and stirrer. The resistance coil has

recommended working current of 0.5A with a maximum of 1A to minimize the local boiling of

liquid. Supplied complete with stirrer but without thermometer but with inner vessel of about

300ml and outer vessel of about 900ml, both of aluminium instead of copper, and upper lid of

transparent acrylic cover. Supplied complete with stirrer but without thermometer.