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The following first order reaction takes...

The following first order reaction takes places at `410 K`:
`2CO(g) rarr CO_(2)(g)+C(s)`
The total pressure at the end of `401 s` after starting with pure `CO(g)` is found to be `0.313 atm`. At the time the reaction is `100%` complete, the total pressure is found to be `0.1645 atm`. Find
(a) The rate constant of the reaction.
(b) The pressure of `CO` after `401 s`.
Note: Here `C` is the solid form.

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