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2 Q2: [20 points] (Non-anonymous question o) One-third the volume of a rigid vessel is filled with three moles of liquid substance at its normal boiling point. The system is heated to 260 K until all the liquid is transformed to gas. Calculate the final pressure of the system. The molar volume of the liquid substance at its normal boiling point is 35 cm /mol. The P-v-T behavior of the substance can be represented by Pitzer correlations for the second virial coefficient [20] Additional data: Molar mass - 28g/mol, Tn - 77 K. Tc - 126.2 K, Pc - 34 bar, o -0.04