We are asked to calculate the K of the reaction below.
N2(g) + 2 O2(g) ↔ 2 NO2(g)
To calculate the K of the reaction equation, we’re going to use Hess’s Law. We’re going to manipulate the 3 reactions with given K values such that when we add them together, we will get the reaction equation with the unknown K.
Unknown Kp value: N2(g) + 2 O2(g) ⇌ 2 NO2(g) K = ?
Reaction 1: N2(g) + O2(g) ⇌ 2 NO(g) K1 = 25
Reaction 2: NO2(g) ⇌ NO + 1/2 O2(g) K2 = 92
Given the values of K shown below, determine the value of K for the reaction,
N2(g) + 2 O2(g) <=> 2 NO2(g).
N2(g) + O2(g) <=> 2 NO(g) K = 25
NO2(g) <=> NO + 1/2 O2(g) K = 92
Give your answer to the 4 decimal places.
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