Chemistry

Problem

A 4.00\,L container at 800\,K contains only gases involved in the reaction

2\,\mathrm{SO_2(g)} + \mathrm{O_2(g)} \rightleftharpoons 2\,\mathrm{SO_3(g)}

Initially, 2.00\,mol of

\mathrm{SO_2}

and 2.00\,mol of

\mathrm{O_2}

are present; no

\mathrm{SO_3}

is present. At equilibrium, the mixture is found to contain 1.20\,mol of

\mathrm{SO_3}

. Determine the value of

K_c

at 800\,K.