The following substitution reaction exhibits second-order kinetics, and is therefore presumed to occur via an SN2 process: What happens to the rate if the concentration of 1-iodopropane is tripled and the concentration of sodium hydroxide remains the same? The rate of the reaction will be tripled. The rate of the reaction will be cut to one-third. The rate of the reaction remains the same. The rate of the reaction will be doubled. What happens to the rate if the concentration of 1-iodopropane remains the same and the concentration of sodium hydroxide is doubled? The rate of the reaction remains the same. The rate of the reaction is cut in half. The rate of the reaction is quadrupled. The rate of the reaction is doubled. What happens to the rate if the concentration of 1-iodopropane is doubled and the concentration of sodium hydroxide is tripled? The rate of the reaction will be quadrupled. The rate of the reaction will be doubled. The rate of the reaction will be five times faster. The rate of the reaction will be six times faster.