1.

When sulphur is heated at 900 K, `S_(8)` is converted to `S_(2)`. What will be the equilibrim constant for the reaction if initial pressure of 1 atm falls by `25%` at equilibrium ?A. `0.75 atm^(3)`B. `2.55atm^(3)`C. `25.0 atm^(3)`D. `1.33 atm^(3)`

Answer» Correct Answer - D
`{:(,S_(8(g)),hArr,4S_(2(g)),),("Intial pressure",1-(25)/(100),,4xx(25)/(100),),(,=0.75,,=1,):}`
`K_(p)=((P_(S_(2)))^(4))/(P_(S_(8)))=((1)^(4))/(0.75)=1.33" atm"^(3)`


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