b) Calculate the Pressure at State 2.

c) If carbon dioxide could be considered an ideal gas at these conditions, what would be the for (U2-U1)?

(20 points) For the van der Waals equation of state, calculate the difference (U2-U) for the following two states for carbon dioxide: T1 = 298.15 K T2=298.15 K V1 = 620.0 x 10-6 m3/mol V2 = 500.0x 10-6 m3/mol a = 0.3658 Pam6/mol2 b = 42.86 x 10-6 m3/mol van der Waals EOS: . P= (1) V-b v2 a