MCQ
Given the reaction between $2$ gases represented by $A_2$ and $B$ to give the compound $AB_{(g)}$
$A_{2(g)} + B_{2(g)} \rightleftharpoons 2AB_{(g)}$
At equilibrium, the concentration of $A_2= 3.0 \times 10^{-3} \, M,$ of $B_2= 4.2 \times 10^{-3} \, M,$ of $AB= 2.8 \times 10^{-3} \, M,$
If the reaction takes place in a sealed vessel at $527^o C,$ then the value of $K_c$ will be
- A$2$
- B$1.9$
- ✓$0.62$
- D$4.5$