Question

construct the expression for kp for the following reaction. n₂(g) + o₂(g) ⇌ 2 no(g) drag the tiles into the numerator or denominator to form the expression. each reaction participant must be represented by one tile. do not combine terms. kp = pₙ₂ 2(pₙ₂) (pₙ₂)² pₒ₂ 2(pₒ₂) (pₒ₂)² pₙₒ 2(pₙₒ) (pₙₒ)²

Explanation:

Step1: Recall Kp formula for gas - phase reactions

For a reaction $aA(g)+bB(g)
ightleftharpoons cC(g)+dD(g)$, $K_p=\frac{P_C^c\times P_D^d}{P_A^a\times P_B^b}$, where $P_i$ is the partial - pressure of species $i$ and $a,b,c,d$ are the stoichiometric coefficients.

Step2: Identify stoichiometric coefficients and species in given reaction

In the reaction $N_2(g)+O_2(g)
ightleftharpoons 2NO(g)$, the stoichiometric coefficient of $N_2$ is $a = 1$, of $O_2$ is $b = 1$, and of $NO$ is $c = 2$.

Step3: Write the Kp expression

$K_p=\frac{(P_{NO})^2}{P_{N_2}\times P_{O_2}}$

Answer:

Numerator: $(P_{NO})^2$
Denominator: $P_{N_2}\times P_{O_2}$