The equilibrium constants of the following are: N_2 + 3H_2 leftharpoons 2NH_3 ( K_1 ) N_2 + O_2 leftharpoons 2NO ( K_2 ) H_2 + 1/2O_2 → H_2O ( K_3 )The equilibrium constant ( K ) of the reaction: 2NH_3 + 5/2O_2 leftharpoons 2NO + 3H_2O will be:

To get the target reaction:Reverse reaction 1: 2NH_3 leftharpoons N_2 + 3H_2 K' = 1/K_1 .Keep reaction 2: N_2 + O_2 leftharpoons 2NO K'' = K_2 .Triple reaction 3: 3H_2 + 3/2O_2 leftharpoons 3H_2O K''' = K_3^3 .Add them: (1/K_1) × K_2 × K_3^3 = K_2 K_3^3/K_1 .

The equilibrium constants of the following are: N_2 + 3H_2 leftharpoons 2NH_3 ( K_1 ) N_2 + O_2 leftharpoons 2NO ( K_2 ) H_2 + 1/2O_2 → H_2O ( K_3 )Th - Chemistry MCQ NEET 2017 2026 | ExamTest.live

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The equilibrium constants of the following are: N_{2} + 3 H_{2} ⇌ 2 NH_{3} (K_{1}) N_{2} + O_{2} ⇌ 2 NO (K_{2}) H_{2} + \frac{1}{2} O_{2} \to H_{2} O (K_{3})The equilibrium constant (K) of the reaction: 2 NH_{3} + \frac{5}{2} O_{2} ⇌ 2 NO + 3 H_{2} O will be:

A $K_{1} K_{3}^{3} / K_{2}$
B $K_{2} K_{3}^{3} / K_{1}$
C $K_{2} K_{3} / K_{1}$
D $K_{2}^{3} K_{3} / K_{1}$

Solution & Step-by-step Explanation

To get the target reaction:Reverse reaction 1: 2 NH_{3} ⇌ N_{2} + 3 H_{2} ⟹ K^{'} = 1/ K_{1} .Keep reaction 2: N_{2} + O_{2} ⇌ 2 NO ⟹ K^{''} = K_{2} .Triple reaction 3: 3 H_{2} + \frac{3}{2} O_{2} ⇌ 3 H_{2} O ⟹ K^{'''} = K_{3}^{3} .Add them: (1/ K_{1}) \times K_{2} \times K_{3}^{3} = \frac{K _{2} K _{3}^{3}}{K _{1}} .

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The equilibrium constants of the following are: N_{2} + 3 H_{2} ⇌ 2 NH_{3} (K_{1}) N_{2} + O_{2} ⇌ 2 NO (K_{2}) H_{2} + \frac{1}{2} O_{2} \to H_{2} O (K_{3})The equilibrium constant (K) of the reaction: 2 NH_{3} + \frac{5}{2} O_{2} ⇌ 2 NO + 3 H_{2} O will be:

K_{1} K_{3}^{3} / K_{2}

K_{2} K_{3}^{3} / K_{1}

K_{2} K_{3} / K_{1}

K_{2}^{3} K_{3} / K_{1}

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The equilibrium constants of the following are: $N_{2} + 3 H_{2} ⇌ 2 NH_{3}$ ( $K_{1}$ ) $N_{2} + O_{2} ⇌ 2 NO$ ( $K_{2}$ ) $H_{2} + \frac{1}{2} O_{2} \to H_{2} O$ ( $K_{3}$ )The equilibrium constant ( $K$ ) of the reaction: $2 NH_{3} + \frac{5}{2} O_{2} ⇌ 2 NO + 3 H_{2} O$ will be:

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The equilibrium constants of the following are:N2​+3H2​⇌2NH3​ (K1​)N2​+O2​⇌2NO (K2​)H2​+21​O2​→H2​O (K3​)The equilibrium constant (K) of the reaction: 2NH3​+25​O2​⇌2NO+3H2​O will be:

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The equilibrium constants of the following are: $N_{2} + 3 H_{2} ⇌ 2 NH_{3}$ ( $K_{1}$ ) $N_{2} + O_{2} ⇌ 2 NO$ ( $K_{2}$ ) $H_{2} + \frac{1}{2} O_{2} \to H_{2} O$ ( $K_{3}$ )The equilibrium constant ( $K$ ) of the reaction: $2 NH_{3} + \frac{5}{2} O_{2} ⇌ 2 NO + 3 H_{2} O$ will be: