CHM110H5 Lecture Notes - Lecture 1: Reaction Rate, Reagent
Document Summary
Decomposition of calcium carbonate: decomposition of calcium carbonate for the production of lime, a process that involves the application of heat, here the equation would be written thus, caco 3 (s) cao (s) + co 2 (g). Both the calcium carbonate (caco 3 ) and the lime (cao) are solids, whereas the carbon dioxide produced in this reaction is a gas. In the manufacture of lime calcium carbonate is heated in an open vessel, not in a closed vessel. Forward reaction rate decreases: eventually, the products can react to re-form some of the reactants, reverse reaction = products reactants. At some time between 100 and 110 sec, the concentrations of both the red and the blue molecules no longer change equilibrium has been established. Notice that equilibrium does not mean that the concentrations are equal! Once equilibrium is established, the rate of red molecules turning into blue is the same as the rate of blue molecules turning into red.
