Question

why ios_butane more stable than n_butane​

Answer 1

Answer:

For example, why more highly substituted double bonds are more stable than less substituted double bonds. ... This more stable carbon-carbon hyperconjugated resonance structure explains the increased thermodynamic stability of 2-methylpropane compared to the isomeric n-butane.

Explanation:

hope it help you

Answer 2

Explanation:

isobutane (2-methylpropane) is more stable than n-butane. For example, their heats of formation (taken from the NIST WebBook) are −134.2 kJ/mol and −125.6 kJ/mol respectively, putting isobutane at ca. 10 kJ/mol lower in energy.