Iron ore is reduced to pure iron by smelting, during which the iron (III) oxide in the ore reacts with carbon monoxide gas, like this: Fe2O3(s)+3CO(g) 2Fe(s)+3002 (8) Suppose an engineer decides to study the rate of this reaction. She prepares four reaction vessels with 170.6 g of solid iron (III) oxide and 30.3 g of carbon monoxide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. vessel volume temperature initial rate of reaction A 3.0 L 1000. C ? B 2.0 L 1100. C ? C 5.0 L 1000. C ? D 3.0 L 1100. C ? 5