Exercise 9.63
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Re: Exercise 9.63
I'm guessing you use Appendix A to check each molecule's gibb's free energy to see which ones have a positive free energy. Positive free energy corresponds with unstable molecules.
This topic was also answered by Chem_Mod at this thread if you are still confused:
viewtopic.php?f=135&t=19252
This topic was also answered by Chem_Mod at this thread if you are still confused:
viewtopic.php?f=135&t=19252
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Re: Exercise 9.63
Hey!
So, the question is asking which of the four compounds are stable compared to their individual elements. If a value of free energy is positive, that means that the compound is unstable with regards to its individual elements. Basically, that reaction is endothermic-- you have to put in heat/energy to bring the elements together. So, compounds with a negative value of free energy indicate that the reaction is favorable, and the elements want to form a bond in order to become more stable, and will release energy.
a) PCl5 and d)SO2 are the answer because they have negative delta G values.
Hope this helps :)
So, the question is asking which of the four compounds are stable compared to their individual elements. If a value of free energy is positive, that means that the compound is unstable with regards to its individual elements. Basically, that reaction is endothermic-- you have to put in heat/energy to bring the elements together. So, compounds with a negative value of free energy indicate that the reaction is favorable, and the elements want to form a bond in order to become more stable, and will release energy.
a) PCl5 and d)SO2 are the answer because they have negative delta G values.
Hope this helps :)
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