Dewar vase calorimeter : PTD039505

CONSTITUTION:

1 ALUMINIUM VASE :
• total contents: 800 ml (use contents: 500 ml)
• Use contents: 500 ml
• concentric to a large neck Dewar vase
• protected by a metal casing equipped with two locking hooks.

1 PLASTIC COVER:
• 1 square opening for the stirring rod, blocked in rotation, because of the square section of the rod.
• 1 central closing with Ø 40mm protection cap, for isolation of foreign bodies after having been introduced into the calorimeter.
• 1 Ø 8-mm opening for the thermometer.
The cover, with rubber washer, is hold by two metal clamp collars, diametrically opposite.

1 500-ml BEAKER
• Ø 100 mm – Height 100 mm
• it can replace the aluminium vase, for the study of thermochemical reactions
•1 square section stirring rod with semi-circular blade (30-mm radius).

1 SET OF RESISTANCES
• robust diam 40-mm holder, with 2 Ø 4-mm security sockets, with 2 conductive rods at the end of which you put the resistance.
• Set of resistances : 1, 2, 3, 5 Ohms

CHARACTERISTICS:
• Capacity : 500 ml
• Water value of the calorimeter + stirring rod : 14,7 Cal/degrees
• Radiation losses / gains or conduction : very low.
• External dimension : Ø 170 mm – Height : 215 mm.
• Aluminium mass heat : 0,214 kcal. kg-1. K-1
• Glass mass heat : 0,186 kcal. kg-1. K-1.

Provided with Handbook.