Someone please help me with this, it’s a test

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?

Sand is more likely than shale to preserve fossils. true false