4-lbm of water at 400 psia initially fills the 2.5-ft3 left chamber of a partitioned system. The right chamber's volume is 3.5 ft3, and it is initially evacuated. The partition is now ruptured, and heat is transferred to the water until its temperature is 300 F. Determine the final pressure of water, in psia, and the total internal energy, in Btu, at the final state.