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WBJEE 2013 Physics Solved Paper

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Question : 5

Total: 60

A frictionless piston-cylinder based enclosure contains some amount of gas at a pressure of 400 kPa. Then heat istransferred to the gas at constant pressure in a quasi-sta ic process. The piston moves up slowly through a height of10cm. If the piston has a cross-section area of 0.3 m2, the work done by the gas in this process is

6 KJ
12 KJ
7.5 KJ
24 KJ

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