Q1. A tank of 1 m3 volume capacity contains CO2 at 200 psia (13.79 bar, 13.79*105 N/m2) and 20 C. CO2 flows from the tank into a gas holder through a partially opened valve (see the schematic below). The gas holder is also at 20 C and the transfer occurs isothermally (T = constant). (0) (ii) Calculate the mass of CO2 removed from the tank if the pressure in the tank drops to 100 psia (6.899 bar or 6.899*105 N/m2. Molecular Weight of CO2 is 44 g/mol. (5 Marks) For the situation in (i), calculate the pressure in the gas holder if the volume of the gas holder is 0.2 m. (Assume T is maintained at constant at 20 C). (5 Marks) Calculate the final pressure in the tank if the mass of CO2 removed from the tank is 1.5 kg. (5 Marks) For the situation in (ii), calculate the pressure in the gas holder if the volume of the gas holder is 0.1 m. (Assume T is maintained at constant at 20 C). (5 Marks) (iii) (iv) Use the ideal gas law PV = nRT, P,V1 = RT1n, P2V2 = RT2n2, R = 8.314 mPa/(mol.K) Pa = N/(m), K = 273+ C (Use absolute temperature in Kelvin, K) , (5+5+5+5 = 20 Marks) Transfer of CO2 from pressurized tank to gas holder P3, V3,T3, n3 1 m3 Volume contains CO2 Vzm Volume Gas Holder Holds CO2 n3 = n1-n2 Initial State 1 P1,V1,71,ni Final State 2 P2,V2,T2, n2