need help on Gibbs Free Energy
Hi everyone. This time I need help with finding the Gibbs Free Energy of this chemical reaction: CaC2(s)+2H2O(l) --> C2H2 + Ca(OH)2
The question says to use the standard-state free energies of formation,![[IMG]](proxy.php?image=http%3A%2F%2Fwww.crazyengineers.com%2Fcommunity%2Fgraphics%2Fdelta.gif&hash=eac8ee492e5e84c755b6e91264bc8c99)
Gfo for finding the Gibbs free energy to prove that even if Acetylene cant be synthesized from an element,we can get Acetylene from this reaction.
StaNdard free energies of formation for each compound:
CaC2=-64.9
H2O=-237.2
C2H2=209.2
Ca(OH)2=-898.6
The answer is -150.1 kJ
The question says to use the standard-state free energies of formation,
Gfo for finding the Gibbs free energy to prove that even if Acetylene cant be synthesized from an element,we can get Acetylene from this reaction.StaNdard free energies of formation for each compound:
CaC2=-64.9
H2O=-237.2
C2H2=209.2
Ca(OH)2=-898.6
The answer is -150.1 kJ
Replies
-
AruwinOh,i have figured it out 😀 -
PraveenKumar PurushothamanWhy don't you post your research???
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Aruwin
Oh, because I didn't find the answer through internet but from my textbook. It was actually easy. Just minus the total energy of the reactants from the total energy of the products. I was confused at first.Praveen-KumarWhy don't you post your research???
You are reading an archived discussion.
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