Nitrogen is contained in a 80L tank and the initial pressure and temperature is 250 kPa and 200 °C, respectively. Note the ideal gas constant for nitrogen is 0.2968 kJ/kg K Determine: a. The mass of the gas in kg. b. Now, if 0.05 kg of gas leaks out of the tank and in the process the temperature of the gas remaining in the tank in kPa. If the atmospheric pressure is 101.325 kPa.

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