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A_(2)B is anideal gas, which decompase according f to theequation : A_(2) B toA_(2)+ (1)/(2)B_(2) . Atstart , the initial pressureis 100 mm Hgand after 5 minutes , the pressureis 120 mm Hg. Whatis the averagerateof decompositionof A_(2)B ? AssumeT and V are constant . |
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Answer» Solution :The decomposition reaction of gaseous `A_(2)B` is given as `A_(2)B to A_(2)+(1)/(2)B_(2)` `100 0 0` at start of the reaction `100-2x 2x X` after the reaction `100-2x+2x+x=100+x=120"MM"` `x=20mm "or" 2x=40mm` The decrease in pressure of reactant SUBSTANCE, `A_(2)B` in `5` min is `40` mm. The rate of decomposition of `A_(2)B=(40)/(5)` `8 "mm min"^(-1)=0.133"mm" s^(-1)` |
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