Among the following reactions, the number of reactions for which K P = K C is (1) N 2 ( g ) + O 2 ( g ) ⇌ 2 NO ( g ) (2) CO ( g ) + H 2 O ( g ) ⇌ C O 2 ( g ) + H 2 ( g ) (3) C ( s ) + O

Question

Among the following reactions, the number of reactions for which $K_{P} = K_{C}$ is

(1) $N_{2} (g) + O_{2} (g) ⇌ 2 NO (g)$

(2) $CO (g) + H_{2} O (g) ⇌ C O_{2} (g) + H_{2} (g)$

(3) $C (s) + O_{2} (g) ⇌ C O_{2} (g)$

(4) $H_{2} (g) + I_{2} (s) ⇌ 2 HI (g)$

(5) $C S_{2} (l) + 3 O_{2} (g) ⇌ C O_{2} (g) + 2 S O_{2} (g)$

(6) $N H_{4} HS (s) ⇌ N H_{3} (g) + H_{2} S (g)$

(7) $2 N O_{2} (g) ⇌ N_{2} O_{4} (g)$

(8) $FeO (s) + CO (g) ⇌ Fe (s) + C O_{2} (g)$

TestHub · Accepted Answer

K P ​ = K C ​ when Δ n (gaseous species only) = 0. (1) 2 − 2 = 0. ( 2 ) 2 − 2 = 0. ( 3 ) 1 − 1 = 0. ( 4 ) 2 − 1 = 1 , no. (5) 3 − 3 = 0. ( 6 ) 2 − 0 = 2 , no. (7) 1 − 2 = − 1 , no. (8) 1 − 1 = 0 . Reactions 1, 2, 3, 5 and 8 qualify. Answer: 5.

Chemistry - Chemical Equilibrium Question with Solution | TestHub

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