The graph below shows the change in pressure as the
Chapter , Problem 10.12(choose chapter or problem)
The graph below shows the change in pressure as the temperature increases for a 1-mol sample of a gas confined to a 1-L container. The four plots correspond to an ideal gas and three real gases: CO2, N2, and Cl2. (a) At room temperature, all three real gases have a pressure less than the ideal gas. Which van der Waals constant, a or b, accounts for the influence intermolecular forces have in lowering the pressure of a real gas? (b) Use the van der Waals constants in Table 10.3 to match the labels in the plot (A, B, and C) with the respective gases (CO2, N2, and Cl2). [Section 10.9] 250 300 350 400 450 500 Ideal gas Gas A Gas B Gas C 550 20 25 30 15 40 35 45 Temperature (K) Pressure (atm)
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