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Question
Energy barrier between staggered and eclipsed ethane is :
Energy barrier between staggered and eclipsed ethane is :
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Solution
The correct option is B 3.0 kcal/mole
The eclipsed structure is important not because it is highly populated , but because its energy relative to the staggered structure defines how much energy is required to complete a rotation in ethane. This is called the energy barrier to rotation, and it is about 3 kcal/mol.
The eclipsed structure is important not because it is highly populated , but because its energy relative to the staggered structure defines how much energy is required to complete a rotation in ethane.
This is called the energy barrier to rotation, and it is about 3 kcal/mol.
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