Question

For the reaction, $C\left(s\right)+{CO}_2\left(g\right)\rightleftharpoons 2CO\left(g\right)$, the partial pressure of ${CO}_2$ and $CO$ are $2.0$ and $4.0$ atm, respectively. At equilibrium the $K_p$ of the reaction is:

• A. $0.5$
• B. $4.0$
• C. $32.0$
• D. $8.0$

Answer 1

The correct option is D $8.0$

For the reaction, $C\left(s\right)+{CO}_2\left(g\right)\rightleftharpoons 2CO\left(g\right)$, the partial pressure of ${CO}_2$ and $CO$ are $2.0$ and $4.0$ atm, respectively, at equilibrium.
$K_p=\frac{P_{CO}^2}{P_{CO2}}$

$K_p=\frac{(4.0{)}^2}{2.0}$

$K_p=8.0$

Thus, the $K_p$ of the reaction is 8.0.

So, the correct option is $D$