ThermoChemistry: Calorimetry

Introduction

• Source: ChemistrySpace.com
• Focus on the concept of calorimetry in ThermoChemistry.

Main Topics

What is Calorimetry?

• A method used to measure the amount of heat involved in a chemical or physical process.

Types of Calorimeters

1. Constant Volume Calorimeter (Bomb Calorimeter)
   • Used to measure the energy of combustion reactions.
   • Operates at a constant volume.
2. Constant Pressure Calorimeter (Coffee Cup Calorimeter)
   • Used in solution-based reactions.
   • Operates at constant pressure.

Heat Capacity

• Definition: The amount of heat required to change the temperature of a substance by one degree Celsius.
• Unit: Joules per Kelvin (J/K)

Specific Heat Capacity

• Definition: The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.
• Unit: Joules per gram per Kelvin (J/g·K)

Calculating the Heat of a Reaction

• Formula: q = mcΔT
  • q = heat absorbed or released
  • m = mass of the substance
  • c = specific heat capacity
  • ΔT = change in temperature

Determining Final Temperature

• Using plot data to determine the final temperature of a reaction.

Study Materials

• Available materials include class notes, solved practice problems, etc.

Related Posts and Resources

• ThermoChemistry helpful videos.
• Introduction and basics of ThermoChemistry.

External Resources

• Links to organizations such as ACS, DARPA, IUPAC, NASA STEM, NIST for further exploration.

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