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At 518^(@)C the rate of decomposition of...

At `518^(@)C` the rate of decomposition of a sample of gaseous acetaldehyde initially at a pressure of 363 Torr, was 1.00 Torr `s^(-1)` when `5%` had reacted and 0.5 Torr `s^(-1)` when `33%` had reacted. The order of the reaction is

A

1

B

0

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
`r=k[A]^(n)`
`1=k (363xx0.95)^(n)" ….(i)"`
`0.5=k (363xx0.67)^(n)" ….(ii)"`
From (i) and (ii)
n=2
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