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Ten kilograms of water in a piston/cylinder setup with constant pressure is at 450°C and a volume of 0.633 m^3. It is now cooled to 20°C.

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Ten kilograms of water in a piston/cylinder setup with constant pressure is at 450°C and a volume of 0.633 m3. It is now cooled to 20°C. Show the P–v diagram and find the work and heat transfer for the process. 

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C.V. The 10 kg water.

Energy Eq.  m(u2 - u1) = 1Q2 − 1W2

Process: P = C ⇒ 1W2 = mP(v2 -v1)

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