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For a reaction Ato products, half life i...

For a reaction `Ato` products, half life is 40 min, when the initial concentration of A is 4 molar. Half life of same reaction is 80 mm when the initial concentration orf A is 2 molar. Then

A

order is 1

B

order of the reaction is 2

C

units of rate constant is `"time"^(-1)`

D

unit of rate of reaction mole `"lit"^(-1)"time"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`[A]_(0)" "4" "2`
`t_(1/2)" "40" "80`
`((t_(1/2))_(1))/((t_(1/2))_(2))=((C_(2))/(C_(1)))^((n-1)),(40/80)=(2/4)^((n-1)),(1/2)^(1)=(1/2)^(n-1),1=n-1,n=2`
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