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Half lives of decomposition of NH(3) on ...

Half lives of decomposition of `NH_(3)` on the surface of a catalyst for different initial pressure are given as `:`
`P("torr")" "200" "300" "500`
`t_(1//2)" "10" "15" "25`
The order of the reaction is `-`

A

2

B

0

C

1

D

`0.5`

Text Solution

Verified by Experts

The correct Answer is:
2
`t_(1//2)prop(1)/(a^(n-1))`
`(15)/(10)=((200)/(300))^(n-1)`
`(3)/(2)=((2)/(3))^(n-1)`
`n-1=-1`
`n=0`
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