What is an example of a free energy practice problem?
1 Answer
Most Gibbs free energy problems revolve around determining a reaction's spontaneity or the temperature at which a reaction either is or isn't spontaneous.
For example, determine if this reaction is spontaneous under standard conditions; knowing that the reaction's change is enthalpy is
We know that
If
Let's determine for what temperatures this reaction will be spontaneous. In other words, we need to find a temperature at which the reaction stops being spontaneous.
A reaction is no longer spontaneous when
We get
Here's a link to some more Gibbs free energy examples;