Gen Chem I Sh
Electronegativity
Acids
Intermolecular Forces: forces between di
Intramolecular Forces: internal forces (bon
Van der Waals Forces
Dispersion (London)
He (noble gas) monatomic gas
- Is (spherical)
He 2 He
• Liquid Helium: 4 Kelvins (boiling point)
10.'
• Intermolecular: the attractions between
• Intra molecular: the attractions within molecu
, 11 The Dissolution Process
• Spontaneous process, a process that occurs under spec
- a decrease in the internal energy of the system (an e
- an increased dispersal of matter in the system (an inc
• Types of Solutions: homogeneous mixtures of 2 or more
• Solvent: one component of a solution
is present @a significantly greater - Ideal: interaction with different particles are all
Concentration • Ex: a mixture of gases like helium and argon
• Solutes: other components of the solution
• Similar molecule mixtures are mostly ideal
is present@a significantly lesser
concentration
- Real: different interactions with different particles (
• Alloy: solid mixture of a metallic element
- Coulombic interaction: the interaction both charged p
& one or more additional elements
• Depends on magnitude of charge & distance
• Electrolyte: substance that produces
ions when dissolved in water
- U: lattice energy of the crystal
• Nonelectrolyte: substance that does
not produce ions when dissolved U & Q, Q2 → U = K-Q1-Q2 • k: lattice co
d d
in water
• &: proportion to • Q, & Q2: magnitude • d: dis