Answer to Question #119145 in General Chemistry for Abigail Rouse

Question

At 2000 °C, carbon dioxide decomposes: 2CO₂ (g) <--> 2CO (g) + O₂, carbon dioxide is 2.0 X 10⁻³ M and Carbon monoxide is 7.9 X 10⁻⁶ and Oxygen is 1.0 X 10⁻⁷M. Using the data above, please calculate the K value *

1.6 X 10⁻¹²
6.2
2.5 X 10⁻⁵

Answer 1

K = ([CO]²х[O₂])/[CO₂]² = ([7.9х10^-6]²х[1.0х10^-7])/[2.0х10^-3]² = 15.6х10^-13 M = 1.6х10^-12 M