Chemistry Lesson 2
Enthalpy
Learning Objectives:
In this chapter you will learn:

Endothermic reaction and exothermic reaction

Specific heat capacity, heat capacity and molar heat capacity

Latent heat of melting/boiling

Standard enthalpy of neutralization

Hess’s Law

Bond enthalpy

Enthalpy of atomizations

Standard enthalpy change of formation
Suggested Time Allocation:
Part
Theme
Powerpoint Slides
Suggested time
allocation:
1
Endothermic reaction and
exothermic reaction
3-6
16 mins
2
Specific heat capacity, heat
capacity and molar heat capacity
7
4 mins
3
Latent heat of melting/boiling
8
3 mins
4
Standard enthalpy of
neutralization
9 - 10
8 mins
5
Hess’s Law
11 - 12
8 mins
6
Bond enthalpy
13 - 15
9 mins
7
Enthalpy of atomizations
16
3 mins
8
Standard enthalpy change of
formation
17 - 49
99 mins
Total time suggested:
150 mins (2.5
hours)
Teachers Notes:
1.
This module covers some of the basic key concepts in enthalpy.
students to get a brief overview about this topic.
It allows
2.
The equilibrium constant, K, and Eo are related through RTln(K) = Go = Ho 
TSo = nFEo. Although So, and hence Go, are not covered in the this
training course, the net relationship between K and Eo is introduced because this
relationship is useful in determining K for many chemical reactions. These
reactions can be broken into two half-reactions, the Eo values of which can be
found from literature. The value of Eo, and hence that of K, of the whole
reaction can then be determined.
Suggested Web-resources for Further Study:
1.
http://en.wikipedia.org/wiki/Enthalpy
- An introduction of enthalpy from fundamental principle
2.
http://en.wikipedia.org/wiki/Standard_enthalpy_change_of_formation_(data_tabl
e)
- A detailed table for the standard enthalpy change of formation of a large
number of compounds and substances