One mole of O 2 ( g ) and two moles of SO 2 ( g ) were heated in a closed vessel of one-litre capacity at 1098 K . At equilibrium 1.6 moles of SO 3 ( g ) were found. The equilibrium constant K c

Question

One mole of O 2 ( g ) ​ and two moles of SO 2 ( g ) ​ were heated in a closed vessel of one-litre capacity at 1098 K . At equilibrium 1.6 moles of SO 3 ( g ) ​ were found. The equilibrium constant K c ​ of the reaction would be

TestHub · Accepted Answer

O 2 ​ + 2 SO 2 ​ ⇌ 2 SO 3 ​ at t = 0 1 2 0 at equil. ( 1 − α ) 2 ( 1 − α ) 2 α Given at equilibrium ​ 2 α = 1.6 K C ​ = ( 1 − α ) ( 2 − 2 α ) 2 ( 2 α ) 2 ​ = ( 1 − 0.8 ) ( 1 − 0.8 ) 2 α = 0.8 ( 0.8 ) 2 ​ ​ = 0.002 0.64 ​ K C ​ = 80 ​

Chemistry - Chemical Equilibrium Question with Solution | TestHub

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