CHEMISTRY COMMUNITY

I am confused on why the answer in the book said that the I was the reactant and the I2 was the product in the graph, when the equation we were given said the reverse. Is this just a typo, or can someone explain why it should be this way?

I believe that it is a typo, because the reaction in 5G.13 (which is what you graph in 5G.17) is I2 (aq) --> 2I (g).