Final answer:
The boiling point of a molecule depends on the strength of intermolecular forces. Methane has the lowest boiling point, followed by Ethanol, and Butane has the highest.
Step-by-step explanation:
The boiling point of a molecule depends on the strength of intermolecular forces between its particles. The stronger the intermolecular forces, the higher the boiling point.
In this case, we have three molecules: Methane (CH4), Ethanol (C2H5OH), and Butane (C4H10). Methane is a nonpolar molecule and has only weak London dispersion forces. Ethanol is a polar molecule capable of hydrogen bonding. Butane is also a nonpolar molecule, but it is larger and has stronger London dispersion forces.
Therefore, the correct order from lowest to highest boiling point is: A) Methane, Ethanol, Butane.