The equilibrium constant (Kc) for the reaction N2(g) + O2 (g) → 2NO (g) at temperature T is 4 Ã 10-4. Thevalue of Kc for the reaction NO(g) → (1/2) N2(g) + (1/2) O2(g) at the same temperature is :

Question

The equilibrium constant (Kc) for the reaction N2(g) + O2 (g) → 2NO (g) at temperature T is 4 Ã 10-4. Thevalue of Kc for the reaction NO(g) → (1/2) N2(g) + (1/2) O2(g) at the same temperature is : (A) 0.02 (B) 2.5 × 102 (C) 4 × 10-4 (D) 50.0

Tardigrade Admin · Accepted Answer

N2 + O2→ 2NO K = 4 Ã 10-4 NO → (1/2)N2 +(1/2)O2 K' = (1/√K) = (1/√4×10-4) = 50

Q. The equilibrium constant $(K_{c})$ for the reaction $N_{2}$ $_{(g)}$ + $O_{2}$ $_{(g)} \to 2 NO (g)$ at temperature T is $4 \times 1 0^{- 4}$ . Thevalue of Kc for the reaction $NO$ $_{(g)} \to \frac{1}{2} N_{2}$ $_{(g)} + \frac{1}{2} O_{2}$ $_{(g)}$ at the same temperature is :

$0.02$

$2.5 \times 1 0^{2}$

$4 \times 1 0^{- 4}$

$50.0$

$N_{2} + O_{2} \to 2 NO K = 4 \times 1 0^{- 4}$
$NO \to \frac{1}{2} N_{2} + \frac{1}{2} O_{2} K^{'} = \frac{1}{K} = \frac{1}{4 \times 1 0 ^{- 4}} = 50$

Q. The equilibrium constant (Kc​) for the reaction N2​(g)​ + O2​ (g)​→2NO(g) at temperature T is 4×10−4. Thevalue of Kc for the reaction NO(g)​→21​N2​(g)​+21​O2​(g)​ at the same temperature is :

0.02

2.5×102

4×10−4

50.0