Question

AB₂ dissociates as: AB₂(g) ⇋ AB(g) + B(g).If the initial pressure is 500 mm of Hg and the total pressure at equilibrium is 700 mm of Hg, calculate K_p for the reaction. 

Answer 1

Using partial pressure concepts in the given reaction, calculate the partial pressure and then apply K_p expression.

After dissociation, suppose the decreases in the pressure of AB₂ at equilibrium is p mm. Then