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The half-period 't' for the decompositio...

The half-period 't' for the decomposition of ammonia on tungsten wire was measured for different initial pressure p of ammonia at `25^(@)C`. Then,

A

it is a zero-order reaction.

B

it is a first-order reaction

C

rate constant for reaction is `0.114s^(-1)`

D

rate constant for reaction is 1.14 s

Text Solution

Verified by Experts

The correct Answer is:
A, C
`t_(1//2) prop (1)/(p^(n-1)) rArr (48)/(92) = ((21)/(11))^(n-1) rArr n = 0`
For zero order, `t_(1//2) prop (p)/(2k) rArr k = (p)/(2t_(1//2)) = (11)/(2 xx 48) = 0.114 s^(-1)`
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