50 kg of saturated liquid water is present in a closed rigid tank at 2 bars initially. Heat is added to the tank until state 2 is reached. At state 2, the pressure increases to 4 bars and the

internal energy is 2000 kJ/kg.

a. What are the final phase of the water (state 2). Enter your answer here

Explain how you figured it out.

b. Is quality () defined at state 2? If yes, calculate the quality

c. What is the amount of heat transferred between the tank and the surroundings? Insert value here

and its unit here

d. Indicate whether this is heat lost or gained by the tank