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For a reaction Ato products, the graph d...

For a reaction `Ato` products, the graph drawn between rate of reaction Vs (a-x) gives a straight line with the slope 0.0693 `"min"^(-1)`.Initial concentration of the reactant is 0.4M . After 20 minutes the rate of reaction is calculated as `6.93xx10^(-x)`. Report the value of x?

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The correct Answer is:
3
`r=K.(a-x)^(n)impliesn=1,r=K(a-x),0.0693xx20=2.303xx"log"(0.4/(Ct))`
`2xx0.3010=log(0.4/(Ct)),4=0.4/(C_(t))impliesC_(t)=0.1,r=K.(C_(t))^(1)=0.693xx(0.1)^(1)=6.93xx10^(-3)`
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