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In the reaction 2A rarr Products, the co...

In the reaction `2A rarr` Products, the concentration of A Calculate from 1.0 mol `L^(-1)` to 0.8 mol `L^(-1)` in 20 min. Calculate the rate during this interval.

A

0.5 mol `L^(-1)" min"^(-1)`

B

0.005 mol `L^(-1)" min"^(-1)`

C

0.05 mol `L^(-1)" min"^(-1)`

D

0.0005 mol `L^(-1)" min"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Rate of reaction = Rate of disappearance of A
`=-(1)/(2)(Delta(A))/(Deltat)=-(1)/(2)((0.8-1.0)"mol"L^(-1))/(20 min)`
`=0.005 molL^(-1)" min"^(-1)`
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