Free Energy

Using your knowledge of Gibbs free energy, solve each of the problems below. Remember, to solve for ΔG you must know ΔH, ΔS, and temperature. Use the equation ΔG= ΔH-TΔS. Make sure you show all of your work for each problem.

This activity is available below or in a printable version.

1. Calculate ΔG and make sure to include a statement if the reaction is spontaneous, non-spontaneous, or at equilibrium if;
   • ΔH= -32.0 kJ/mol
   • ΔS= 25.0 kj/K∙mol
   • T= 293K
2. Calculate ΔG and make sure to include a statement if the reaction is spontaneous, non-spontaneous, or at equilibrium if;
   • ΔH= 12.0 kJ/mol
   • ΔS= -5.0 kj/K∙mol
   • T= 290K
3. Calculate ΔG at 25°C for the following reaction, by first calculating ΔH and ΔS. Make sure to include a statement if the reaction is spontaneous, non-spontaneous, or at equilibrium. You may also use the Standard Thermodynamic Values Table to find the values of ΔH and ΔS in order to complete this problem.

   CH3CO2 (l) + 2 O2 (g) → 2 CO2 (g) + 2 H2O (g)

Once you have completed this assignment, please submit your work to the dropbox.