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helloeveryone's avatar

Does anyone know of a link for help on solving the change in enthalpy?

Asked by helloeveryone (68points) March 11th, 2010
2 responses
“Great Question” (1points)

Im stuck on some chemistry stuff and i need help. Im not asking anyone to solve it for me, I was just wondering if anyone knew of a good website for a walkthrough or something. I am given the chemical reaction and i need to find the enthalpy.

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ETpro's avatar

Wikipedia explains it well. http://en.wikipedia.org/wiki/Enthalpy

ETpro (34605points)“Great Answer” (1points)
jahono's avatar

YOu need to calculate th enthalpy of reaction using the individual bond enthalpies of the chemicals in your reaction.
Total bond energy of rectants – Total bond energy of products = reaction enthalpy.
http://www.webchem.net/notes/how_far/enthalpy/enthalpy_diagrams.htm
Tables of some bond enthalpy values
http://nshs-science.net/crosby/common/pdf/R-bond_enthalpies.pdf

jahono (145points)“Great Answer” (1points)

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