The Calorific Value of Coal

In experiment C2.3.1.1, coal is burned and the heat of combustion is determined with a calorimeter. The calorimeter completely surrounds the sides and top of the combustion chamber. The hot combustion gases generated are fed through a double glass coil and give off their energy to the environment (the glass element and the bath liquid) in the form of heat. In this way, the heat of combustion can be determined using the total heat capacity of the calorimeter.

Components:

1	666 429	Calorimeter for solids and liquids, CPS
1	666 819	Stirring top, with GL 32 screw thread
1	666 428	Panel frame C100, two-level, for CPS
2	666 4660	Adhesive magnetic board, 300 mm
4	666 4664	Holder, magnetic, size 4, 27...29 mm
4	664 800	Gas scrubber bottle, lower section, 200 ml
4	664 805	Glass tube insert, ST 29/32
1	665 392ET10	Joint clip, plastic, ST 29/32, set of 10
3	667 312	Glass connector, 2 x GL 18
1	301 312	Console
1	726 21	Equipment platform, 350 mm
1	521 231	Low-voltage power supply, 3/6/9/12 V
1	524 013	Sensor-CASSY 2
1	524 220	CASSY Lab 2
1	524 0673	NiCr-Ni adapter S, type K
1	529 676	Temperature probe, NiCr-Ni, 1.5 mm, type K
3	667 312	Glass connector, 2 x GL 18
1	667 183	Rubber tubing, 1 m x 8 mm diam., DIN 12865
1	604 510	Tubing connector, 4...15 mm
1	667 197	Silicone tubing, 4 mm diam., 1 m
1	521 536	DC Power Supply 2 x 0...16 V/2 x 0...5 A
3	501 45	Connecting lead, 19 A, 50 cm, red/blue, pair
1	667 7977	Electronic Balance 440-3N, 200 g : 0.01 g
1	ADAHCB3001	Precision Balance, 3000 g / 0,1 g
1	667 092	Mortar, porcelain, 70 mm Ø
1	608 360	Pestle, 54 mm long
1	660 998	Minican pressurised gas canister, oxygen
1	660 980	Fine regulating valve for minican gas canisters
1	673 8420	Sodium hydroxide solution, 1 mol/l, 500 ml
1	674 7850	Sulfuric acid, 95-98 %, 250 ml
1	661 082	Stopcock grease, 60 g
1		additionally required: PC with Windows 7 or higher