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delta g

Posted: Tue Mar 10, 2020 5:02 pm
by 705121606
how do we know when we should use products-reactants vs delta g= delta h - t delta s

Re: delta g

Posted: Tue Mar 10, 2020 5:08 pm
by 705121606
would it be the same as long as it is standard conditions? at standard temperature?

Re: delta g

Posted: Tue Mar 10, 2020 6:19 pm
by Daria Azizad 1K
I think based on the information you are given. If it isn't as standard temp, use g= delta h - t delta s.

Re: delta g

Posted: Tue Mar 10, 2020 6:26 pm
by Jacob Motawakel
If we are given a chemical reaction formula and have the DeltaG values similar to that of the midterm, then we would use products minus reactants. However, if given entropy or enthalpy, I believe we would be prompted to use the DeltaG = DeltaH - TDeltaS.

Re: delta g

Posted: Tue Mar 10, 2020 6:43 pm
by Vinita Saxena 2I
It depends on what information you're given!

Re: delta g

Posted: Tue Mar 10, 2020 6:44 pm
by ShravanPatel2B
similar to the midterm problem when given the values for delta g you can you use the products minus reactants equation but when given values for enthalpy and entropy you should be prompted to use the second equation to solve for delta g.

Re: delta g

Posted: Tue Mar 10, 2020 9:35 pm
by WGaines_2E
depends on what is given. if you know dG for both then the easiest way is to simply use those values. If they aren't given you are probably going to have to use enthalpy, temp, and entropy to find the dG values then subtract reactants from products