Chemistry · Alkanes: Conformations: Sawhorse and Newman projections (of ethane), mechanism of halogenation of alkanes
Energy barrier between staggered and eclipsed ethane is :
Energy barrier between staggered and eclipsed ethane is :
- A. \( 6.0 \mathrm{kcal} / \mathrm{mole} \)
- B. 3.0 kcal/mole
- C. \( 2.0 \mathrm{kcal} / \mathrm{mol} \)
- D. \( 4.0 \mathrm{cal} / \mathrm{mole} \)
Step-by-step solution
The torsional energy barrier between staggered and eclipsed conformations of ethane is approximately 3.0 kcal/mol, which is a well-known value in organic chemistry. This barrier arises from torsional strain due to electron repulsion in the eclipsed conformation.
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