Utterly Confused About Thermodynamics

Let s work a few examples of problems employing information from this chapter. Determine the value of AS° for each of the following reactions. 

These are thermochemical equations. Fractions are acceptable in thermochemical equations. 

To begin the problem, we need the standard entropy values for each of the reactants and products. These are the values we ll be using to complete this problem  

A Make sure you use the correct value from the table of values. As seen in this example, the value for liquid water is not the same as for gaseous water. 

Unless your instructor has told you to memorize specific thermochemical values, you will be provided the numbers you need. Most textbooks have a table of values in the chapter and an additional table in Appendix. 

---