A 1.10 ball is at rest on the floor in a 2.00m x 2.00m x 2.00m room of air at STP. Air is 80% nitrogen and 20% oxygen by volume.
a. What is the thermal energy of the air in the room?
b. What fraction of the thermal energy would have to be conveyed to the ball for it to be spontaneously launched to a height of 1.20 m?
c. By how much would the air temperature have to decrease to launch the ball?

I have a: E=2.03×10^6 J but I have no idea how to get the other two parts :/