Question

3. What will be the total pressure of the gaseous mixture at equilibrium if \( AB _{2} \) is \( 20 \% \) dissociated according to the following reaction, \( AB _{2}( g ) \rightleftharpoons A ( g )+2 B ( g ) \) ? ( \( K _{ p } \) represents the equilibrium constant of the reaction) [NCERT Pg. 207] (1) \( 4 K_{p} \) (2) \( 7 K_{p}^{1 / 2} \) (3) \( 2 K_{p}^{1 / 2} \) (4) \( 3 K_{p}^{1 / 2} \)

Answer 1

Correct option is (2) \(7\,K^{1/2}_{p}\)

According to the given reaction,

Therefore, the total pressure of the gaseous mixture is \(7\,K^{1/2}_{p}\)