Which of the following is the correct order of boiling points for KNO₃,CH₃OH,C₂H₆,Ne? A)Ne

Question

Which of the following is the correct order of boiling points for KNO₃,CH₃OH,C₂H₆,Ne? A)Ne < CH₃OH < C₂H₆ < KNO₃ B)KNO₃ < CH₃OH < C₂H₆ < Ne C)Ne < C₂H₆ < KNO₃ < CH₃OH D)Ne < C₂H₆ < CH₃OH < KNO₃ E)C₂H₆ < Ne < CH₃OH < KNO₃

Quizplus · Accepted Answer

Boiling points generally increase with molecular weight and the strength of intermolecular forces. Neon (Ne) is a noble gas with very weak dispersion forces and thus has the lowest boiling point. Methane (CH₄) and hydrogen sulfide (H₂S) have higher boiling points due to increased molecular weight and stronger dispersion forces. Methanol (CH₃OH) has hydrogen bonding, significantly increasing its boiling point. Potassium nitrate (KNO₃) is an ionic compound, which typically have the highest boiling points due to the strong ionic bonds.

Which of the Following Is the Correct Order of Boiling