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## Calorimetry
## Additional recommended knowledge
## Constant-volume
No work is performed in constant-volume calorimetry, so the heat measured equals the change in internal energy of the system. The equation for constant-volume calorimetry is (the heat capacity at constant volume is assumed to be constant): where *ΔU*is change in internal energy,*ΔT*is change in temperature and*C*is the heat capacity at constant volume._{V}
Since in ## Constant-pressure
The heat measured equals the change in internal energy of the system minus the work performed: Since in This formula is a simplified representative of Hess's Law. ## See also- Accelerating rate calorimetry
- Differential scanning calorimetry
- Isothermal titration calorimetry
- Respirometry
- Thermodynamic databases for pure substances
## References**^**Laider, Keith, J. (1993).*The World of Physical Chemistry*. Oxford University Press.__ISBN 0-19-855919-4__.
Categories: Heat | Thermodynamics | Calorimetry |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Calorimetry". A list of authors is available in Wikipedia. |