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Energy Changes

Secondary 4 Review:

Acid & Base Neutralizations (download)

Endothermic and Exothermic Reactions (download)

Chemistry Lessons:

NOTE: All of the VoiceThread lessons for this unit can be found by clicking on the VoiceThread link in the left menu in Sakai. Please use these view/download links as a back-up only!

Conservation of Energy lesson (in class – see archive for November 17)

Energy Transfer lesson

Enthalpy Change lesson (view/download)

Energy Diagram lesson

Reversible Reactions lesson

Thermodynamics and Stoichiometry lesson

Molar Heat of Dissolution lesson

Molar Heat of Neutralization lesson

Hess’s Law lesson

Bond Enthalpies lesson

For more practice (Quantum Chemistry textbook questions):

Introduction – page 137 # 1, 3, 5, 7, 9, 11, 13, 15 (Note that c = 4.7 J/goC for #15)

Energy Transfer – page 141 #1, 5, 7, 9, 11

Enthalpy – page 155 #1, 2, 6, Study Guide pages 34-38  #1, 3, 4, 6, 7, 9-14

Reversible Reactions – page 183 #1, 2, 3, 5

Molar Heat – page 195 #2, 3, 5, 7, 9 (need table on page 420), Study Guide pages 42-44 #2, 3, 5, 10

Thermodynamics and Stoichiometry – Study Guide pages 42-44  #2, 3, 5, 10

Hess’s Law – page 208 #1a, c, e, 2, 3, 7, 9, Study Guide pages 45 onwards

Bond Enthalpies – page 160 #1-6, page 169 #7, 9, 10, 15, 20 (for a challenge!)