A reaction has the stoichiometry X+Y Product The following data were obtained for the reaction of 5.0 mM X with 5.0 mM Yat 25 °C: A student plots In([X]) vs.

time to determine the order (as in question lc, above)and produces the following plot: What order is the reaction? What is kPP? For a second-order reaction, and assuming that the orders with respect to the individual reactants are integral, what are the possible rate laws for a reaction X + Y - Product ? How would you distinguish experimentally between the possibilities? Calculate the first and second half-times for the reaction in part (a). Calculate the concentration of X that would be present after 5.0 s if the initial concentrations of both X and Y were 20 mM.