Answer to Question #187407 in General Chemistry for Nico

Question #187407

In a blast furnace, carbon monoxide (CO) is used to reduce ferric oxide (Fe2O3) to metallic iron, with carbon dioxide as a by-product. The equilibrium constant Kp for the redox reaction is 19.9 at 1000 K. If the equilibrium pressure of CO2 is 2.4 atm, how much pressure is exerted by pressure?


Fe2O3 + 3CO(g) ⇌ 2Fe(s) + 3CO2(g)

1
Expert's answer
2021-05-06T07:39:55-0400
"K_p = {P^3(CO_2) \\over P^3(CO)}"

"19.9 = {2.4^3 \\over x^3}"

"x = \\sqrt[3]{{2.4^3 \\over 19.9}} = 0.89 atm"


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