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For a first order reaction the plot of ‘...

For a first order reaction the plot of ‘t’ against log c gives a straight line with a slope equal to :

A

`(k//2.303)`

B

`(-k//2.303)`

C

`("In k"//2.303)`

D

`-k`.

Text Solution

Verified by Experts

The correct Answer is:
B
`t= (2.303)/( k) "log" (C_O)/( C_t) rArr t = (2.303)/( k)[ log C_O - log C_1]`
`(kt )/( 2.303 ) = log C_O - log C_t rArr C_t = ((-k)/( 2.303)) t + log C_O`
So slope `= ((-k)/( 2.303))`
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