Bromine gas in a container is heated over a flame. what happens to the average kinetic energy of the bromine particles?

a.) it decreases rapidly.
b.) it increases quickly.
c.) it remains the same.
d.) it decreases slowly.

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?