JEE Main Chemistry question
Given the reaction between two gases represented by A₂ and B₂ to give the compound AB(g): A₂(g)+B₂(g)⇌2AB(g). At equilibrium, the concentration of A₂=3.0×10⁻³ M, of B₂=4.2×10⁻³ M, of AB=2.8×10⁻³ M. If the reaction takes place in a sealed vessel at 527°C, then the value of Kc will be:
Answer: (C)
Solution
Kc=(2.8×10⁻³)²/(3.0×10⁻³×4.2×10⁻³)=0.622.