Is the +4 a predetermined value? Or is there a way to calculate it? And what exactly does it indicate?
So for example, "The relative energy difference between the eclipsed and staggered conformations of ethane is approximately -12 kJ/mol. Since ethane's eclipsed conformation has three pairs of eclipsed C-H bonds we can estimate that each unfavorable interaction per pair of eclipsed C-H bonds is +4 kJ/mol."
Was the -12 kJ/mol a predetermined value?
C-H Bond +4 kJ/mol
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Re: C-H Bond +4 kJ/mol
The -12 kJ is the given value. Since we know that there are three eclipsed bonds, we divide by three to get the 4kJ value. The 4kJ value indicates the extra energy it takes to form this conformation.
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Re: C-H Bond +4 kJ/mol
The -12kJ is a predetermined value and the value +4kJ/mol is a calculated value found later.
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Re: C-H Bond +4 kJ/mol
Camila Bautista 3I wrote:Is the +4 a predetermined value? Or is there a way to calculate it? And what exactly does it indicate?
So for example, "The relative energy difference between the eclipsed and staggered conformations of ethane is approximately -12 kJ/mol. Since ethane's eclipsed conformation has three pairs of eclipsed C-H bonds we can estimate that each unfavorable interaction per pair of eclipsed C-H bonds is +4 kJ/mol."
Was the -12 kJ/mol a predetermined value?
Yes it is predetermined and a constant value for bonds
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