Chapter 11. Intermolecular Forces, Liquids, and Solids 11.2 Intermolecular Forces • Intermolecular forces are much weaker than ionic or covalent bonds (e.g., 16 kJ/mol versus 431 kJ/mol for HCl). • Melting or boiling = broken intermolecular forces • Intermolecular forces are formed when a substance condenses. In liquid methanol, CH3OH which intermolecular forces are present? asked Sep 12, 2016 in Chemistry by SOSVenezuela A) Dispersion, hydrogen bonding and dipole-dipole forces are present.
Intermolecular Forces. Irresistible attraction…. ATTRACTIVE FORCES. Always electrostatic in nature. Intra molecular forces. bonding forces. These forces exist within each molecule. They influence the chemical properties of the substance. Inter molecular forces. nonbonding forces.
HCl I2 CH3F CH3OH H2O H2S SiO2 SO2 Cu Fe Kr CH3OH CuO NH3 CH4 HCl(g) NaCl SiC Properties affected by intermolecular forces Boiling point Retention of volume and shape Surface tension Evaporation Vapor pressure Viscosity Properties are affected by forces Physical properties depend on these forces.