In this problem we are going to use two approaches to calculate the mass of N2 gas contained in a tank of known volume at known temperature and pressure. a. Assume that the tank volume is 15.0 m3, the temperature 25.0°C and the gauge pressure 10.0 bar. Calculate the mass of nitrogen in the tank using the ideal-gas equation of state. b. Now assume that the tank volume is 35.0 m3, the temperature 40.0°C and the gauge pressure 19.0 bar. Use conversion from standard conditions to estimate the mass of nitrogen in the tank.

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