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Standard Enthalpy Of Formation

Standard Enthalpy Of Formation

Submitted by • September 1, 2012 chemistry.tutorvista.com

As the heat of a reaction varies with temperature, it is desirable to fix a standard or a reference state. A substance is said to be in standard state when it is present in its most stable state at 298 K under a pressure of one atmosphere.The heat change that occurs when a process is carried out at 298K and one atmospheric pressure is called standard heat change.

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Voted by sujeet123

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