Question

Energy of rotation about carbon-carbon single bond

Answer 1

The rotation about carbon -carbon angle bond.. The single bonds in organic molucelus free to rotate,due-to the end-to-end (sigma) nature of the orbital overlap. Consider the carbon-oxygen bond in ethanol..
Ex: With a 180° rotation about this bond the shape of the molucule would look quite different...

Answer 2

$\huge\fbox\red{Hi\:mate}$

Question

Energy of rotation about carbon-carbon single bond

Answer

Carbon atoms in single bonds rotate freely.Rotation does not change this electron distribution; the bond strength remains constant throughout rotation. Because rotation is possible, the molecule can have an infinite number of conformations, and a sketch of any of them is an accurate representation of the molecule.

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