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All right guys, so in these videos I'm going to teach you how to use free energy in kilojoules
per mole to calculate the exact percentages of each conformation that you would get of
a cyclohexane.. Again, these videos might be beyond the scope of what your professor wants you to know for
your test, so I'm going to leave it up to you to decide if you need to know this or
not.. So you've been warned, so it's time to get into this.
It turns out that we can use that delta G value that we get from our A values to calculate
those exact percentages at any given temperature.. Now the way we do this is through the Gibbs free energy equilibrium constant equation.
Just so you guys know, if this equation looks familiar, it's not unique to this type of
problem.. In fact, pretty much any process that you can describe a free energy difference in can
be – you can determine an equilibrium through this equation.
This is a very important equation for all of chemistry, not just for cyclohexanes.
As you can see, what it says is that – let's just go through one term at a time.
It says that the delta G or the change in free energy is equal to the negative R. Now
remember that R is the gas constant that we used to use in general chemistry.
And there were two different values of R that we used to use.
Well, just note that the one we're using is in joules per mole so that's 8.134.
/ˈneɡədiv/
characterized by absence of distinguishing features. no. Image on camera film used to make a photo. refuse to accept.
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continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. moving in one side and out of other side of.
/pərˈsen(t)ij/
rate or amount in each hundred. Parts of a whole divided into hundredths.
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A thing or issue that people do not agree about. alter coat of arms.