Question

A "gouche" interaction costs $3.8kJ/mol$ , a hydrogen-hydrogen eclipsing interaction costs $4.9kJ/mol$ , a hydrogen-methyl eclipsing interaction costs $6.0kJ/mol$, and methyl-methyl eclipsing interaction costs $11kJ/mol$ . What is the relative energy cost of the most stable conformer of $2,3$-dimethylbutane ?

• A. $0kJ/mol$
• B. $7.6kJ/mol$
• C. $8.6kJ/mol$
• D. $11.4kJ/mol$

Answer 1

Answer: (A)

$0kJ/mol$

A is correct answer.