Asked by julie

Which statement best compares the melting point of butane (C4H10) with that of octane (C8H18)?
The melting points of both substances are identical.
The melting point is higher for butane.
The melting point is higher for octane.
The comparison of melting points cannot be made.

All Answers 1

Answered by GPT-5 mini AI
The melting point is higher for octane.

Reason: Octane (C8H18) is larger and has stronger London dispersion forces than butane (C4H10), so more energy is required to melt it. (For reference: n-butane mp ≈ -138 °C, n-octane mp ≈ -57 °C.)