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A piston/cylinder setup (Fig. P3.171) contains 1 kg of
Chapter 3, Problem 219HP(choose chapter or problem)
Problem 219HP
A piston/cylinder setup (Fig. P3.171) contains 1 kg of water at 20°C with a volume of 0.1 m3. Initially, the piston rests on some stops with the top surface open to the atmosphere, P0, and a mass such that a water pressure of 400 kPa will lift it. To what temperature should the water be heated to lift the piston? If it is heated to saturated vapor, find the final temperature, volume, and work, 1W2.
FIGURE P3.171
Questions & Answers
QUESTION:
Problem 219HP
A piston/cylinder setup (Fig. P3.171) contains 1 kg of water at 20°C with a volume of 0.1 m3. Initially, the piston rests on some stops with the top surface open to the atmosphere, P0, and a mass such that a water pressure of 400 kPa will lift it. To what temperature should the water be heated to lift the piston? If it is heated to saturated vapor, find the final temperature, volume, and work, 1W2.
FIGURE P3.171
ANSWER:
Solution 219 HP
Step 1 of 5
We are required to find the final temperature, volume and work done.