In this piston-cylinder device, D1 = 20 cm-diameter, D2 = 10 cm-diameter, and the initial volume of chamber 2 is 0.1 m^3. Chamber 1 contains 1 kg of air, chamber 2 contains 1 kg of water, and chamber 3 is evacuated. Initially, the temperature of all chambers is 100 C and both liquid and vapor are present in chamber 2. The whole system is now heated until the volume of chamber 2 is 0.09 m^3 and the temperature is the same in all chambers. What is the final temperature of this system?