Question

the table contains a list of compounds and their melting and boiling points. based on the data, which compound has the weakest intermolecular forces?
a so₂
b no₂
c nf₃
d h₂o

Explanation:

Intermolecular forces affect melting and boiling points. Weaker forces mean lower melting and boiling points. Looking at the table:

• For \(H_2O\), melting point is \(0^{\circ}C\) and boiling point is \(100^{\circ}C\).
• For \(NF_3\), melting point is \(-207^{\circ}C\) and boiling point is \(-129^{\circ}C\).
• For \(NO_2\), melting point is \(-9^{\circ}C\) and boiling point is \(21^{\circ}C\).
• For \(SO_2\), melting point is \(-72^{\circ}C\) and boiling point is \(-10^{\circ}C\).

\(NF_3\) has the lowest melting and boiling points among the given compounds. Lower melting and boiling points indicate weaker intermolecular forces.

Answer:

C. \(NF_3\)