Calculate the percent dissociation of $H_2{S}_{\left(g\right)}$ if 0.1 mole of $H_{2}S$ is kept in $0.4lit$ vessel at 1000 K for the reaction $2H_2{S}_{\left(g\right)}\rightleftharpoons 2H_{2_{\left(g\right)}}+S_{2_{\left(g\right)}}$ . Value of $k_c$ is $1.0\times {10}^{-6}$