Arrange the following compounds F2, NaCl, CH3OH,, H2S in decreasing1.Surface tention2.Boiling point3.Melting point4.Vapor pressure5.Viscosity
Answer (1)
1. Surface Tension (decreasing):CH₃OH (hydrogen bonding)H₂S (dipole-dipole)NaCl (ionic, but solid at RT, not usually measured for surface tension)F₂ (dispersion only)Answer: CH₃OH > H₂S > F₂ > NaClNote: NaCl is not a liquid, so it’s rarely ranked in surface tension. It may be excluded.2. Boiling Point (decreasing):NaCl (very high, ionic solid)CH₃OH (hydrogen bonding)H₂SF₂Answer: NaCl > CH₃OH > H₂S > F₂3. Melting Point (decreasing):NaCl (strong ionic bonds)CH₃OHH₂SF₂Answer: NaCl > CH₃OH > H₂S > F₂4. Vapor Pressure (decreasing):F₂H₂SCH₃OHNaClAnswer: F₂ > H₂S > CH₃OH > NaCl5. Viscosity (decreasing):CH₃OHH₂SF₂NaCl (solid, not a liquid, but if molten, would have high viscosity)Answer: CH₃OH > H₂S > F₂ > NaCl
