A tank fitted with an electrical resistor holds 2 kg of

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Reference no: EM13630013

A tank fitted with an electrical resistor holds 2 kg of Nitrogen (N2), Initially at 1 bar. Over a period of 10 minutes, electricity is provided to the resistor at a rate of 120 W. During the same period, a heat transfer of magnitude 12.6 kJ occurs from the Nitrogen to its surroundings. The temperature at the end of the ten minute interval is 67 degrees Celsius. Assume ideal gas behavior for the Nitrogen and determine (a) the initial temperature, in degrees Celsius, and (b) final pressure, in MPa.

Reference no: EM13630013

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