Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: H eclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 115 27.5 110 26.3 cyclopropane cyclobutane cyclopentane cycloheptane 26.0 6.2 26.2 6.3 cyclooctane 40.5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to spe kJ/mol or kcal/mol. The answer is case sensitive.) CH, H3C H CHS H3C CH3 Pre