# In what ratio by mass carbon monoxide and nitrogen should be mixed so that partial pressure exerted by each gas is same?

$m\left({N}_{2}\right)=m\left(CO\right)$

$m\left({N}_{2}\right)=2m\left(CO\right)$

$m\left({N}_{2}\right)=0.5m\left(CO\right)$

None of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".