A steel tank of 20.0 m3 contains CO2 at a pressure of 160 kPa and a temperature of 30.0◦C (State 1). Subsequently,

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A steel tank of 20.0 m3 contains CO2 at a pressure of 160 kPa and a temperature of 30.0◦C (State 1). Subsequently, a rare gas is injected into this reservoir, the temperature at 60.0◦C and it can be seen that the pressure now reaches 194 kPa (State 2). 1. Calculate the amount of CO2 at the start of the experiment. (State 1) 2. Has this quantity changed in state 2? 3. Calculate the new pressure of CO2 in state 2. 4. Calculate the molar fraction of CO2 in state 2. 5. Knowing that the density of the final gas mixture is 3.342 kg/m3 , calculate the molar mass of the mixture. 6. Determine the nature of the rare gas injected.