Two gaseous streams are fed to a continuous reactor that operates at steady state.

Stream $1$ is being supplied at a rate of $1,000\frac{\text{k}\text{m}\text{o}\text{l}}{h}.$ This stream contains carbon monoxide $($CO$)$ at $65$mol$\%$ and nitrogen. Stream $2$ is air and is being supplied at a rate of $1,800\frac{\text{k}\text{m}\text{o}\text{l}}{h}.$ Air can be assumed to contain only oxygen $($at $21$mol$\%)$ and nitrogen.

In the reactor, carbon monoxide reacts with oxygen and produces carbon dioxide $(C{O}_2).$

The fractional conversion of the carbon monoxide supplied to the reactor is $0\mathrm{.}90.$ There is a single $($gaseous$)$ stream exiting the reactor $($stream$3).$

$1.$ Find the molar flow rate of stream $3.$

$2.$ Find the molar composition of stream $3.$

$3.$ Find the mass $($weight$)$ composition of stream $3.$