1.

5 moles of SO_(2) and 5 moles of O_(2) are allowed to react to form SO_(3) in a closed vessel. At the equilibrium stage, 60%SO_(2) is used up. The total number of moles of SO_(2),O_(2)andSO_(3) in the vessel now is

Answer»

`3.9`
`10.5`
`8.5`
`10.0`

Solution :`{:(,2SO_(2),+,O_(2),iff,2SO_(3)),("INITIAL moles",5,,5,,),("At eqm.",5-(60)/(100)xx5,,5-1.5,,3),(,=5-3=2,,=3.5,,):}`
Total = `2+3.5+3=8.5`


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