Some of the reactions and their equilibrium constants Kc are given. Choose the reaction which proceeds rarely at the given temperature. .

Question

Some of the reactions and their equilibrium constants Kc are given. Choose the reaction which proceeds rarely at the given temperature. . (A) 2 H 2( g )+ O 2( g ) leftharpoons 2 H 2 O ( g ) ; K c =2.4 × 1047 at 500 K (B) H 2( g )+ l 2( g ) leftharpoons 2 Hl ( g ) ; K c =57.0 at 700 K (C) H 2( g )+ Cl 2( g ) leftharpoons 2 HCl ( g ) ; K c =4.0 × 1031 at 300 K (D) N 2( g )+ O 2( g ) leftharpoons 2 NO ( g ) ; K c =4.8 × 10-31 at 298 K

Tardigrade Admin · Accepted Answer

Correct answer is (d) N 2( g )+ O 2( g ) leftharpoons 2 NO ( g ) ; K c =4.8 × 10-31 at 298 K

Q. Some of the reactions and their equilibrium constants $K_{c}$ are given. Choose the reaction which proceeds rarely at the given temperature. .

$2 H_{2} (g) + O_{2} (g) ⇌ 2 H_{2} O (g); K_{c} = 2.4 \times 1 0^{47}$ at $500 K$

$H_{2} (g) + l_{2} (g) ⇌ 2 H l (g); K_{c} = 57.0$ at $700 K$

$H_{2} (g) + C l_{2} (g) ⇌ 2 H Cl (g); K_{c} = 4.0 \times 1 0^{31}$ at $300 K$

$N_{2} (g) + O_{2} (g) ⇌ 2 NO (g); K_{c} = 4.8 \times 1 0^{- 31}$ at $298 K$

$H_{2} (g) + B r_{2} (g) ⇌ 2 H B r (g); K_{c} = 5.4 \times 1 0^{18}$ at $300 K$

Correct answer is (d) $N_{2} (g) + O_{2} (g) ⇌ 2 NO (g); K_{c} = 4.8 \times 1 0^{- 31}$ at $298 K$

Q. Some of the reactions and their equilibrium constants Kc​ are given. Choose the reaction which proceeds rarely at the given temperature. .

2H2​(g)+O2​(g)⇌2H2​O(g);Kc​=2.4×1047 at 500K

H2​(g)+l2​(g)⇌2Hl(g);Kc​=57.0 at 700K

H2​(g)+Cl2​(g)⇌2HCl(g);Kc​=4.0×1031 at 300K

N2​(g)+O2​(g)⇌2NO(g);Kc​=4.8×10−31 at 298K

H2​(g)+Br2​(g)⇌2HBr(g);Kc​=5.4×1018 at 300K

Correct answer is (d) N2​(g)+O2​(g)⇌2NO(g);Kc​=4.8×10−31 at 298K