When limestone (solid Caco,) Is heated, it decomposes into lime (Solid CaO) and carbon dioxide gas. This is an extremely usefut industrial process of great antiquity, because powdered lime mixed with water is the basis for mortar and concrete - the lime absorbs Co, from the air and turns back into hard, durable limestone Suppose some calcium carbonate is sealed into a limekiln of volume 650. L and heated to 950.0C. When the amount of Caco, has stopped changing. It is found that 2.59 kg have disappeared. Calculate the pressure equilibrium constant K, this experiment suggests for the equilibrium between Caco, and Cao at 950.0C. Round your answer to 2 significant digits. Note for advanced students: It's possible there was some error in this experiment, and the value it suggests for K, does not match the accepted value. K-0 X $