Consider the equilibrium dissociation of carbon dioxide CO₂ ⇔ CO + 1/2 O₂. At 2500 K, the equilibrium constant is 0.03635. Calculate the enthalpy of reaction for this reaction at 2500 K and use this to estimate the equilibrium constant for a temperature of 3000 K. Compare your estimated value with the exact value from Table 13.1 in Example 13.2 and discuss.

Table 13.1 in Example 13.2

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TABLE 13.1 Equilibrium Compositions at Various Temperatures for CO₂ CO +02 at 1 atm AGT (kJ/kmol) Кр Xco Xcoz Xo₂ T = 1500 K 1.5268 x 108 4.823 x 10-6 3.601 104 0.9994 1.801 x 104 T = 2000 K 1.1046 × 108 0.00492 0.0149 0.9777 0.0074 T = 2500 K 6.8907 x 107 0.03635 0.1210 0.8185 0.0605 T = 3000 K 2.7878 x 10² 0.3270 0.3581 0.4629 0.179