Engineering, 11.03.2020 22:01 aliyahmuhammad5197
A piston-cylinder device initially contains 0.5m3 of nitrogen gas at 400 kPa and 27 °C. Anelectric heater within the device is turned on and is allowed to pass a current of 2 A for 5min from a 120V source. Nitrogen expands at constant pressure, and a heat loss of 2800 Joccurs 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
Answers: 1
= 1.039 KJ/Kg K
= 2800
) = VI Δt
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= ΔE system
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= ΔU
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)
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)
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A piston-cylinder device initially contains 0.5m3 of nitrogen gas at 400 kPa and 27 °C. Anelectric h...
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