12 kg of steam, initially at 15 bar pressure and 200°C, is contained in a piston-cylinder...

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12 kg of steam, initially at 15 bar pressure and 200°C, is contained in a piston-cylinder device. Heat is added at constant p

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Answer 1

Answer #1

Since the heating occurs at constant Pressure, we use the specific heat value under constant pressure:

C_p of steam = 1.873 KJ / kg-K

Heat needed = mass * C_p * temperature change = 12 * 1.873 * (350 - 200) = 3371.4 KJ

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Answer 2

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12 kg of steam, initially at 15 bar pressure and 200°C, is contained in a piston-cylinder...

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