Chemistry - Chemical Equilibrium Question with Solution | TestHub

$\begin{array}{c}\\ \text{at}\text{t}\text{=}\text{0}\\ \text{at}\text{t}\text{=}\text{t}\end{array}\begin{array}{ccccccc}\text{A}& \text{+}& \text{B}& \to & \text{C}& \text{+}& \text{D}\\ \text{n}& & \text{n}& & \text{0}& & \text{0}\\ \text{x}& \text{x}& & & \text{2x}& & \text{2x}\end{array}$

${\mathrm{K}}_{\mathrm{c}}=\frac{\left[\mathrm{C}\right]\left[\mathrm{D}\right]}{\left[\mathrm{A}\right]\left[\mathrm{B}\right]}=\frac{2\mathrm{x}\mathrm{}.\mathrm{}2\mathrm{x}}{\mathrm{x}\mathrm{}.\mathrm{}\mathrm{x}}=4$