A piston/cylinder setup similar to 3.171 contains 0.1 kg

Chapter 3, Problem 178HP

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Problem 178HP

A piston/cylinder setup similar to Problem 3.171 contains 0.1 kg of saturated liquid and vapor water at 100 kPa with quality 25%. The mass of the piston is such that a pressure of 500 kPa will float it. The water is heated to 300°C. Find the final pressure, volume, work 1W2 and heat transfer 1Q2.

Problem 3.171

Ten kilograms of water in a piston/cylinder arrangement exists as saturated liquid/vapor at 100 kPa, with a quality of 50%. The system is now heated so that the volume triples. The mass of the piston is such that a cylinder pressure of 200 kPa will float it, as in Fig. 3.171 Find the final temperature and the heat transfer in the process.

FIGURE P3.171

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