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A piston-cylinder device initially contains 0.5m3 of nitrogen gas at 400 kPa and 27 °C. An electric heater within the device is turned on and is allowed to pass a current of 2 A for 5 min from a 120V source. Nitrogen expands at constant pressure, and a heat loss of 2800 J occurs during the process. Determine the final temperature of nitrogen. Assume nitrogen to be an ideal gas with M = 28 g/mol and cp=1.039 kJ/kg.K

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Category:- Chemistry
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