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In the reaction XrarrY, the initial conc...

In the reaction `XrarrY`, the initial concentration of Xis 2.5 mol `L^(-1)` and its concentration after 3 hours is 0.7 mol `L^(-1)` . What is the average rate of the reaction ?

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The correct Answer is:
`0.6xx10^(-1) "mol" L^(-1)hr^(-1)`
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