Question: Two kilograms of water is contained in a piston/cylinder (Fig. P4.110) with a mass less piston loaded with a linear spring and the outside atmosphere,

Two kilograms of water is contained in a piston/cylinder (Fig. P4.110) with a mass less piston loaded with a linear spring and the outside atmosphere, initially the spring force is zero and P1 = Po = 100 kPa with a volume of 0.2 m3. If the piston just hits the upper stops the volume is 0.8 m3 and T = 600°C. Heat is now added until the pressure reaches 1.2 MPa. Find the final temperature, show the P–V diagram and find the work done during the process.

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