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5 moles of `SO_(2)`and 5 moles of `O_(2)` are allowed to react .At equilibrium , it was foumnd that `60%` of `SO_(2)` is used up .If the pressure of the equilibrium mixture is one aatmosphere, the parital pressure of `O_(2)` is :A. 0.82 atmB. 0.52 atmC. 0.21 atmD. 0.41 atm |
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Answer» Correct Answer - D `{:(,2SO_(2)(g),+,O_(2)(g),hArr,2SO_(3)(g)),("Initially",5,,5,,0),("Used up",(5xx60)/(100)=3,,3xx(1)/(2)=1.5,,1.5xx2=3),("At eqm. ",5-3=2,,5-1.5=3.5,,):}` `:. p_(O_(2))=("Moles of" O_(2))/("Total no. of moles" )xx"Total pressure "` `=(3.5)/(2+3.5+3)xx1=(3.5)/(8.5)xx1=0.41 "atm."` |
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