Introduction

 A photograph shows four people in kayaks paddling along a river that winds through a forest.

Since ecotours attract people from all over the world, you may wish to employ someone with a second language for your ecotour. Communication with your ecotour participants is very important, especially where activities involve important safety instructions.

In previous lessons you learned many new terms, symbols, and methods for communicating aspects of thermodynamics. In this lesson you will further your study of the enthalpy changes in chemical reactions by investigating the use of molar enthalpies of formation.

 

Consider the following question as you complete this lesson:

  • How are standard molar enthalpies of formation used to determine the enthalpy change associated with chemical reactions?
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