RANKING: Knowing the effects of intermolecular forces on the boiling points of substances, rank the ones below from weakest to strongest. CO,, Ar, CF, LICI, SiF, Which of the following will have the highest boiling point? b. Which of the following will have the lowest boiling point? c. Explain your answers in a and b.

Which of the following liquids would have the lowest vapor pressure at room temperature?   a. CH2F2   b. CH4   c. Cl2   d. CH3OH

Practile Problers Table H Vapor Pressure of Four Liquids 200. propanone ethanol 150. water ethanoic acíd 101.3 kPa 100. 50. 50. 75 100. 125 Whet Temperature (°C) Vapor Pressure (kPa) 25

Comparing two liquid substances at the same temperature, the one with stronger intermolecular forces will: A. c. have a lower vapor pressure because more molecules have enough energy to escape the liquid surface B. have a lower vapor pressure because fewer molecules have enough energy to escape the liquid surface C. have a higher vapor pressure because more molecules have enough energy to escape the liquid surface D. have the same vapor pressure as the other one because they have the same temperature and hence the same average kinetic energy. E. have a higher vapor pressure because fewer molecules have enough energy to escape the liquid surface

List all intermolecular forces (Dispersion, Dipole-Dipole, Hydrogen Bonding) present in each substance: HOCl ________ CH2Cl2 ________ NCl3 ________ O2 ________

14. Which molecule displays the LEAST hydrogen bonding? a. H20 b. CH3OH c. HF d. H2CO e. HNO