Callendar and Barnes Apparatus (Continuous Flow) Manufacturer,Supplier and Exporter in India
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Product Code : ILS-H-10930
Indian Lab Suppliers supplies the Callendar and Barnes Apparatus (Continuous Flow) (Product ID: 10930) as part of its heat and thermal physics range. Callendar and Barnes' continuous-flow apparatus measures the specific heat capacity of water with an electric heater in a flowing stream.
Quick Answer
Water flows at a steady rate through a borosilicate glass tube, open at both ends, past a nichrome coil about 40 cm long wound spirally along its axis. Two thick brass-sheet end pots and a brass constant-level tank on a stand keep the flow steady, and the assembly is leak-proof when fitted. At steady state VIt = mc(θ2 − θ1) + H; repeating at a second flow rate with the same temperature rise removes the heat loss H. The detachable element sits in a felt-lined wooden case with a hinged cover. Thermometers and meters are not included. Keep water flowing whenever the heater is on, and please confirm the heater supply voltage at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Tube | Borosilicate glass, open at both ends |
| Heater | Nichrome coil, about 40 cm, along the tube axis |
| End pots | Thick brass sheet |
| Constant-level tank | Brass, on stand |
| Case | Felt-lined wood, hinged cover |
| Not included | Thermometers, meters |
Where This Is Used
Used in college heat practicals on specific heat capacity. Steady water supply: the Constant Level Tank (Product ID: 10931); electrical-method alternative: the Joule's Calorimeter (Product ID: 10929). Browse the full Heat range or related Properties of Matter products.
Frequently Asked Questions
What does it measure?
The specific heat capacity of water by continuous flow.
How is heat loss eliminated?
By taking readings at two flow rates with the same temperature rise.
Are thermometers included?
No, and neither are the meters.
Related Categories
Heat · Properties of Matter · Physics Lab Equipment
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