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Form 4 Chemistry: Energy changes in chemical and physical processes lessons
Heat of formation and bond energies
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1.
Introduction: meaning of specific heat capacity,heat content and types of heat changes in chemical reactions
2.
Meaning of endothermic reactions with examples
3.
Meaning of exothermic reactions with examples
4.
Meaning of an activation energy in a chemical reaction
5.
Determination or measurement of Enthalpy (heat) changes.
6.
Heat of neutralization and neutralization reactions involving weak acids or weak alkalis
7.
Experiment to determine the heat of neutralization of hydrochloric acid by sodium hydroxide.
8.
Meaning of Enthalpy of solution,Molar enthalpy of solution,Lattice energy,Hydration (solvation)energy
9.
Experiment: To measure the molar enthalpy change for the dissolution (enthalpy of solution) for various compounds.
10.
Meaning of heat of displacement and Experiment: To determine the molar enthalpy change in the reaction between #Cu^(2+)# ions and zinc or iron
11.
Standard conditions for measuring enthalpy changes.
12.
Energy level diagrams, thermochemical cycles and Hess’s law(The law of constant heat summation)
13.
Define standard heat of combustion of a substance.
14.
Heat of formation and bond energies
15.
Meaning of Molar heat of fusion, ?Hf and Molar heat of vaporization, ?Hvap
16.
Meaning of fuels,heating value,causes of fuel pollution and factors to consider when choosing a fuel.
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