!!!I ONLY NEED HELP WITH PART C!!! A rigid container is filled with 3 kg of wate

Question

!!!I ONLY NEED HELP WITH PART C!!!

A rigid container is filled with 3 kg of water. Initially the water is at 300 kPa and
has internal energy of 1914.25 kJ/kg. Energy is added to the water (no energy escapes) until the
water is all saturated vapor. Determine a) the final temperature, b) the final pressure, and c) the
amount of energy required (in kJ) to complete this process. Sketch the process NEATLY and
ACCURATELY on a T-V diagram, including saturation lines. Label points 1 and 2 (the initial
and final states) on the diagram
ANSWER FOR PART C: 1928.55 kJ

Explanation / Answer

c) Q - W = change in internal energy Since container is rigid, W = PdV = 0. So, energy required Q = change in internal energy = m*(u2 - u1) Read u2 from the tables corresponding to P and T found in parts a) and b) and thus, Q can be found!.

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