Question

1.Calculate the free energy(ΔG°)of the following reactions:
a)H2(g) + O2(g)→ H2O2(g)
b)H2O2(g) + H2(g) → 2 H2O (g)
How do the free energy values for these two reactions compare to the free energy of the combustion of hydrogen gas? Hint: (ΔG) is a state function, therefore Hess’s law is applicable.The combustion of hydrogen gas is modeled by the overall equation is 2 H2(g) + O2(g)→ 2 H2O(g).

2.Based on your calculations in the previous question and your understanding of reaction mechanisms, draw a qualitative energy diagram of the reaction’s progress.Remember to properly label the axes. Make sure you include the formulas of the reactants, intermediate(s)and products and their correct relative positions energy-wise. You can draw the diagram on a separate sheet of paper

3.Why is the test tube with the DI water used as a comparison in this experiment? Explain.

4.Why might the reaction between hydrogen peroxide and MnO4-proceed more slowly towards the end of the reaction?

These question are from  Detecting a Reaction Intermediate lab. Please, help me to answer them or some of them :)

Answer 1