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Topic 5 Ė Thermochemistry

Download full set of notes for Topic 5 (MS Word 2000)

UNDERSTANDING HEATS OF REACTION
 Thermodynamics
Definition of thermodynamics
Definition of thermochemistry
Energy and its units
Definition of energy
Interconversions of energy
Units of energy
Kinetic energy
Potential energy
Internal energy
Total energy
Law of conservation of energy
System and surroundings
Definition of system
Definition of surroundings
Heat and temperature
Definition of heat
Definition of temperature
Thermal equilibrium
Differences between heat and temperature
Heat and the meaning of its symbols
The first law of thermodynamics
Changes in internal energy
Changes from initial state to final state
Changes in internal energy caused by heat and work
Work and heat
Pressure-Volume work
Calorimetry
Calorimeter
Heat capacity, specific heat, and molar heat capacity
Constant-volume calorimetry
Constant-pressure calorimetry
Heat of reaction
Enthalpy and enthalpy change
Enthalpy
Verbal definition of enthalpy
Mathematical definition of enthalpy
Enthalpy is a state function
Examples of thermodynamic functions that are not state functions
Description of the change in enthalpy
Enthalpy of reaction
Thermochemical equations
Definition
Description
Writing thermochemical equations
Manipulating thermochemical equations
Applying stoichiometry to heats of reaction
Procedure
Examples
Hessís Law
Definition
Using Hessís Law to calculate standard enthalpy of formation from other thermochemical equations
Using Hessís Law to calculate standard enthalpies of reaction from standard enthalpies of formation
Using Hessís Law to calculate standard enthalpies of formation from a thermochemical equation and other enthalpies of formation