name that force
This is the only intermolecular force present in nonpolar molecules like CH₄.
What are London dispersion forces
Between H₂O and H₂S, this substance has stronger intermolecular forces.
What is H₂O
A molecule with equal charge distribution and symmetrical shape is described as this.
What is nonpolar
Stronger IMFs generally lead to this higher temperature property.
What is boiling point
This phase change occurs when a liquid becomes a gas.
What is vaporization
This force occurs between polar molecules due to partial positive and negative charges.
What is dipole-dipole
Between CO₂ and NH₃, this molecule has the higher boiling point.
What is NH₃
CO₂ is nonpolar because of this molecular geometry.
What is linear
This property decreases as intermolecular forces increase.
What is vapor pressure
This phase change releases energy as gas turns into liquid.
This special strong dipole-dipole force occurs when H is bonded to N, O, or F.
What is hydrogen bonding
Between F₂ and I₂, this substance has stronger dispersion forces.
What is I₂
H₂O is polar because of this bent shape and unequal electron distribution.
What is bent geometry
This property describes a liquid’s resistance to flow and increases with stronger IMFs.
What is viscosity
During a phase change, this remains constant even though heat is added.
What is temperature
This force occurs when an ion interacts with a polar molecule, like Na⁺ in water.
What is ion-dipole
Between ethanol (C₂H₅OH) and dimethyl ether (CH₃OCH₃), this has stronger IMFs.
What is ethanol
A molecule like CF₄ is nonpolar despite polar bonds because of this property.
What is symmetry
Water’s unusually high surface tension is due to this type of IMF.
What is hydrogen bonding
This term describes the energy required to turn liquid into gas by overcoming IMFs.
What is heat of vaporization
This force increases with molar mass and electron cloud polarizability, even in nonpolar substances.
What are London dispersion forces
Between HF, HCl, and HBr, this has the strongest intermolecular forces overall.
What is HF
This molecule is polar due to its trigonal pyramidal shape and lone pair on the central atom (NH₃).
What is ammonia
This property explains why liquids form droplets due to cohesive forces at the surface.
What is surface tension
On a heating curve, this part represents phase changes where IMFs are being broken, not temperature increasing.
What is a plateau