Today we’ll be covering:

• Periodicity of physical properties of elements in Period 3
  • Atomic radius
  • Ionic radius
  • Melting point
  • Electrical conductivity
  • 1^st ionisation energy

Let’s go!
Continue reading “CHEM C9: Period 3 Physical Properties” →

Today we’re covering:

• What is Gibbs Free Energy?
• Predicting the effect of temperature on the spontaneity of a reaction

Let’s go!
Continue reading “CHEM C5: Gibbs Free Energy Change” →

Today we’ll be covering:

• What is Entropy?
• Standard entropy
• Entropy changes
  • State & Temperature change
  • Reaction with a change in the number of gaseous molecules
• Calculating the entropy change for a reaction
• What is a spontaneous/feasible reaction?

Let’s go!
Continue reading “CHEM C5: Entropy” →

Here’s today’s topic:

• What is a Born-Haber Cycle?
• Constructing a Born-Haber Cycle & calculating lattice energies

Let’s go! Continue reading “CHEM C5: Born-Haber Cycles” →

Today we’re covering:

• What is lattice energy?
• Factors affecting numerical magnitude of a lattice energy
  • ionic charge
  • ionic radius

Let’s jump in!
Continue reading “CHEM C5: Lattice Energy” →

• What is Bond Energy?
• Average vs Exact Values
• Calculating Enthalpy Changes using Bond Energies

Let’s go!
Continue reading “CHEM C5: Bond Energy” →

Today we’re covering:

• What is Hess’ Law?
• Enthalpy Cycles
  • Formation
  • Combustion
  • Hydration of Anhydrous Salt

Here we go!
Continue reading “CHEM C5: Hess’ Law” →

Today we’re covering:

• Calculating enthalpy change using calorimetry

Let’s go!
Continue reading “CHEM C5: Calorimetry” →

Here’s today’s topic:

• What is Enthalpy?
• Energy Changes: Exothermic & Endothermic
• What is a standard enthalpy change?
• Types of standard enthalpy changes
  • formation
  • combustion
  • hydration
  • solution
  • neutralization
  • atomization
• What causes enthalpy?
  • Bond energy
  • Lattice energy

Let’s go!
Continue reading “CHEM C5: Enthalpy Changes” →

Here’s the topic for today:

• Lattice structure of crystalline solids
  • Ionic
  • Simple molecular
  • Giant molecular
  • Hydrogen-bonded
  • Metallic
• Materials as a resource
• Type of structure & bonding in a substance

Let’s go!
Continue reading “CHEM C4: Solids” →