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A frictionless piston-cylinder based enclosure contains some amount of gas at a pressure of 400 kPa. Then heat is transferred to the gas at constant pressure in a quasi-static process. The piston moves up slowly through a height of 10 cm. If the piston has a cross-sectional area of 0.3 m^(2), the work done by the gas in this process is |
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Answer» <P>`6 KJ` `W = P Delta V = P Delta (lA) = 400 kPa XX 10 xx 10^(-2) xx 0.3` `= 400 xx 10^(3) xx 10 xx 10^(-2) xx 0.3 = 12 kJ` |
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