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potential energy barrier for the direct interconversion of the two gauche froms of butene id 3.6K cal/mol. What should be theexpected potential energy barrier for direct interconversion of the two gauch from of 1,2-dichloroethane van der Waals' radius of a covalently bond chlorine atom is about the same as that of a methyl group?

A

2.8 kcal/mole

B

3.6 kcal/mole

C

4.6 kcal/mole

D

9.3 kcal/mole

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The correct Answer is:
d
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