Chemistry - Chemical Equilibrium Question with Solution | TestHub

$10$moles of${\mathrm{A}}_2$,$15$moles of${\mathrm{B}}_2$and$5$moles of$\mathrm{A}\mathrm{B}$are placed in a$2$litre vessel and allowed the come to equilibrium. The final concentration of$\mathrm{A}\mathrm{B}$is$10.5\mathrm{ }\mathrm{M}$,

${\text{A}}_2\left(\text{g}\right)+{\text{B}}_2\left(\text{g}\right)\stackrel{}{\rightleftharpoons }2\text{AB}\left(\text{g}\right)$

Determine the value of equilibrium constant$\left({\mathrm{K}}_{\mathrm{C}}\right)$for the reaction.