Question:medium

The equilibrium constant expression for a gas reaction is, 
\(K_c = \frac {[NH_3]^4 [O_2]^5 }{[NO_4] [H_2O_6]}\)
Write the balanced chemical equation corresponding to this expression.

Updated On: Jan 20, 2026
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Solution and Explanation

Given equilibrium constant expression:

Kc = [NH3]4 [O2]5 / [NO4] [H2O]6

Step 1: Identify reactants and products

• Species in the numerator are products
• Species in the denominator are reactants

Products:
NH3, O2

Reactants:
NO4, H2O

Step 2: Use powers as stoichiometric coefficients

• Coefficient of NH3 = 4
• Coefficient of O2 = 5
• Coefficient of NO4 = 1
• Coefficient of H2O = 6

Balanced chemical equation:

NO4(g) + 6H2O(g) ⇌ 4NH3(g) + 5O2(g)

Final Answer:

The balanced chemical equation corresponding to the given equilibrium constant expression is:

NO4(g) + 6H2O(g) ⇌ 4NH3(g) + 5O2(g)

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