For a reaction
`CH_(3)OCH_(3)(g) rarr CH_(4)(g)+H_(2)(g) + CO(g)` at `750 K`,
the rate constant is `6.72 xx 10^(-3) min^(-1)`. Starting with a pressure of `400 mm` of `Hg` at this temperature in a closed container, how many minutes would it take for the pressure in the container to become `760 mm Hg` ?