`4` mol of carbon dioxide was heated in `1 dm^(3)` vessel under conditions which produced at equilibrium `25%` dissociation into carbon monoxide and oxygen. The number of moles of carbon monoxide produced

Options

A. `0.5`
B. `1.0`
C. `2.0`
D. `4.0`

Answer

B

Explanation

`{:(,CO_(2),hArr,CO,+,1/2O_(2)),("Initial",1,,0,,0),("Final",1-alpha,,alpha,,alpha//2),("Final",4(1-alpha),,4alpha,,alpha//2xx4):}`
`alpha=0.25%=0.25`.
Number of moles of CO`=4alpha=4xx0.25=1`