Ice packs are used to make things cold or to add cold to an injury. Some people use insulated cups to keep things like coffee warm. How are these cups different from an ice pack? How might the molecules inside an ice pack be different from the liquid inside of an insulated cup?

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?