Question

which liquid would have the highest volatility (ability to move from liquid to gas)? h₂o (dispersion, dipole-dipole, hydrogen bonding) ch₂o (dispersion, dipole-dipole) hf (dispersion, dipole-dipole, hydrogen bonding) ch₄ (dispersion)

Explanation:

Step1: Relate volatility to intermolecular forces

Volatility inversely correlates with intermolecular force strength. Weaker forces mean easier vaporization.

Step2: Compare force strengths of options

• $\text{H}_2\text{O}$ and $\text{HF}$ have hydrogen bonding (strongest).
• $\text{CH}_2\text{O}$ has dipole-dipole (weaker than H-bonding).
• $\text{CH}_4$ has only dispersion (weakest).

Step3: Identify weakest forces

$\text{CH}_4$ has the weakest intermolecular forces.

Answer:

CH₄ (Dispersion)