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For conformation of cyclohexane why would some of the energies in kj/mol be the same? For...

For conformation of cyclohexane why would some of the energies in kj/mol be the same? For example: at a dihedral angle of 0 degrees celsius and 360 they have the same energy value of about 63 kj/mol.

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Because the conformation with dihedral angle 0 0 and 360 0 are same. The orientation of the groups in the cyclohexane in these two conformations are exactly same. Hence the bond energies and the steric strain in these two conformations are exactly same that leads to the same energies of the conformations.

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