8. A 7 dm3 rigid tank contains 4.5 kg of saturated water (liquid and vapor) at 38 ºC. The tank is slowly heated. a. After a long period of time what do you think happened to the liquid water surface: do you think it raised and reached the top of the tank or it dropped and reached the bottom of it? (3 pt) b. Solve the same problem considering that the amount of water is 0.45 kg instead. (3 pt)